CN104392607B - A kind of traffic state judging method and device - Google Patents

Abstract

The present invention relates to field of traffic control, the embodiment of the present invention provides a kind of traffic state judging method and device, the method includes: obtain the first crossing and the traffic data of the second crossing, described traffic data at least includes that vehicles identifications and vehicle pass through the time, and wherein said second crossing is the Adjacent Intersections of described first crossing；The average speed of the vehicle passing through described first crossing in predetermined period from described second crossing is determined by the time according to described vehicles identifications and described vehicle, and determine in predetermined period the maximum stop frequency from described second crossing to the vehicle of described first crossing, and determine vehicle queue length according to described maximum stop frequency；The traffic behavior in section from described second crossing to described first direction, crossing is determined in described predetermined period according to described average speed, described maximum stop frequency and described vehicle queue length.

Description

A kind of traffic state judging method and device

Technical field

The present invention relates to field of traffic control, particularly relate to a kind of traffic state judging method and device.

Background technology

Traffic state judging the earliest is mainly for the purpose of detection traffic events, along with urban road is got on the bus Be continuously increased, often send out property block up become very universal, therefore the purpose of traffic state judging change in order to Differentiate that often the property sent out is blocked up, control and induction with additional transport signal.The at present judgement of traffic behavior mainly with The data that single detector obtains are for according to judging, causing False Rate higher.Although also there being a few studies Make use of video detector, microwave detector, the detection data of the acquisitions such as RFID detector, but due to these The installation of detector is not universal, and therefore these methods reality to be applied to also has bigger difficulty.It addition, Existing method does not consider the subjective feeling of driver when differentiating, the differentiation result obtained also is not allowed Easily accepted by driver, the most therefore cause the traffic state judging result of the traffic route obtained to be difficult in reality Border obtains extensively application.

In sum, there is presently no a kind of traffic state judging method that accuracy is high and practical application is strong, Control with additional transport signal.

Summary of the invention

The embodiment of the present invention provides a kind of traffic state judging method and device, in order to solve friendship in prior art Logical condition discrimination accuracy rate is low and differentiates the unspecific problem of result.

A kind of traffic state judging method that the embodiment of the present invention provides, including:

Obtaining the first crossing and the traffic data of the second crossing, described traffic data at least includes vehicle Mark and vehicle are by the time, and wherein said second crossing is the Adjacent Intersections of described first crossing；

Determined in predetermined period from described second by the time according to described vehicles identifications and described vehicle Crossing is by the average speed of the vehicle of described first crossing, and determines in predetermined period from institute State the second crossing maximum stop frequency to the vehicle of described first crossing, and according to described maximum parking Number of times determines vehicle queue length；

Determine described according to described average speed, described maximum stop frequency and described vehicle queue length The traffic behavior in section from described second crossing to described first direction, crossing in predetermined period.

It is also preferred that the left described according to described average speed, described maximum stop frequency and described vehicle queue long Degree determines in described predetermined period the friendship in section from described second crossing to described first direction, crossing Before logical state, also include:

Described section is divided into M cross-talk section, and wherein M is the positive integer more than 0.

Determined in predetermined period by the time it is also preferred that the left described according to described vehicles identifications and described vehicle The average speed of the interior vehicle passing through described first crossing from described second crossing, including:

According to described vehicles identifications and described vehicle by the time determine in described predetermined period vehicle from Described second crossing is by the average stroke duration of described first crossing, and during according to described average stroke Distance between long and described second crossing and described first crossing determines the average speed of vehicle.

It is also preferred that the left determine in predetermined period from described second crossing to the vehicle of described first crossing Maximum stop frequency, including:

Determine that vehicle is logical from described second crossing according to described vehicles identifications and described vehicle by the time Cross the average stroke duration of described first crossing, and the stroke duration of each car；

Red light duration according to described average stroke duration and described first crossing determines what secondary was queued up Time critical values；

Stroke duration and the time critical values of described secondary queuing according to each car determine stopping of each car Train number number, determines maximum stop frequency by the stop frequency of each car.

It is also preferred that the left the described red light duration according to described average stroke duration and described first crossing determines Go out the time critical values that secondary is queued up, including:

If described average stroke duration is more than or equal to described red light duration with the difference of preset duration, then described The time critical values that secondary is queued up is described preset duration and described red light duration sum；

Otherwise, the time critical values that described secondary is queued up is equal with described preset duration.

It is also preferred that the left the time critical values that the described stroke duration according to each car and described secondary are queued up determines Go out the stop frequency of each car, including:

For jth car, the stop frequency P of described vehicle_jFor:

If T_j≤T^l, then P_j≤1；Otherwise,

Wherein, T_jRepresent the stroke duration of jth car, T^lRepresent the time critical values that described secondary is queued up, C Represent the traffic lights cycle duration of described first crossing.

Vehicle queue length is determined according to described vehicle maximum stop frequency it is also preferred that the left described, including:

Judge that described vehicle maximum stop frequency whether less than or equal to 1, the most then determines institute by below equation State vehicle queue length:

$L=\frac{N}{C}*R*h_s$

Wherein, L represents described vehicle queue length, and N represents and intersects from described second in described predetermined period Mouth is by the vehicle number of the vehicle of described first crossing, when C represents the traffic lights cycle of described first crossing Long, R represents the red light duration of described first crossing, h_sRepresent between the average headstock of the queuing vehicle preset Away from；

Otherwise, it is judged that whether described vehicle maximum stop frequency is integer, if not integer, then by following Formula determines described vehicle queue length:

$L=\frac{N*(P_{\max }-z)+\underset{m=1}{\overset{z}{\mathrm{\Σ}}}{N}_m}{n}*h_s$

Wherein, L represents described vehicle queue length, and N represents and intersects from described second in described predetermined period Mouth is by the vehicle number of the vehicle of described first crossing, and n represents from described second crossing to described first friendship The number of track-lines in prong direction, P_maxRepresenting described vehicle maximum stop frequency, z is for meeting P_max-1<z≤P_maxJust Integer, h_sRepresent the average headway of the queuing vehicle preset,Before representing described predetermined period Z predetermined period passes through the vehicle number of described first crossing；

Otherwise determine described vehicle queue length by below equation:

$L=\frac{N+\underset{m=1}{\overset{P_{\max }-1}{\mathrm{\&Sigma;}}}{N}_m}{n}*h_s$

Wherein, L represents described vehicle queue length, and N represents and intersects from described second in described predetermined period Mouth is by the vehicle number of the vehicle of described first crossing, and n represents from described second crossing to described first friendship The number of track-lines in prong direction, P_maxRepresent described vehicle maximum stop frequency, h_sThe queuing vehicle that expression is preset Average headway,Represent the P before described predetermined period_max-1 predetermined period is by described first The vehicle number of crossing.

It is also preferred that the left described according to described average speed, described maximum stop frequency and described vehicle queue long Degree determines in described predetermined period the friendship in section from described second crossing to described first direction, crossing Logical state, including:

If described average speed is more than or equal to pre-set velocity, and described vehicle queue length is less than preset length, And described maximum stop frequency is less than or equal to presetting stop frequency, it is determined that from institute in described predetermined period State the second crossing and be in the first state to the traffic behavior in the section in described first direction, crossing；

If described average speed is less than preset length, or institute less than pre-set velocity and described vehicle queue length State maximum stop frequency more than presetting stop frequency and described vehicle queue length less than preset length, it is determined that The traffic behavior in section from described second crossing to described first direction, crossing in described predetermined period It is in the second state；

If described vehicle queue length is more than or equal to preset length, it is determined that in described predetermined period The traffic behavior in the section from described second crossing to described first direction, crossing is in the third state.

It is also preferred that the left described according to described average speed, described maximum stop frequency and described vehicle queue long Degree determines in described predetermined period the friendship in section from described second crossing to described first direction, crossing Logical state, including:

If described average speed is more than or equal to pre-set velocity, and described vehicle queue length is less than or equal to pre- If length, and described maximum stop frequency is less than or equal to presetting stop frequency, it is determined that in described default week From described second crossing to the first cross-talk section in described first direction, crossing to M cross-talk section in phase Traffic behavior be in the first state, wherein, described preset length is to described from described second crossing M/mono-of the road section length of the first crossing；

If described average speed is less than or equal to preset length less than pre-set velocity and described vehicle queue length, Or described maximum stop frequency is more than presetting stop frequency and described vehicle queue length less than or equal to presetting Length, it is determined that the traffic behavior in described first cross-talk section is in the second state, the second cross-talk section to The traffic behavior in M cross-talk section is in the first state,；

If described vehicle queue length is more than preset length, it is determined that the traffic in described first cross-talk section State is in the third state, and the traffic behavior in the second cross-talk section is in the second state, and the 3rd cross-talk section is extremely The traffic behavior in M cross-talk section is in the first state；

If the preset length that described vehicle queue length is more than E times, and presetting less than or equal to F times Length, then the traffic behavior in the first cross-talk section to E-1 cross-talk section is in the third state, F cross-talk The traffic behavior in section is in the second state, at F+1 cross-talk section to the traffic behavior in M cross-talk section In the first state, wherein, E and F is positive integer, and 0 < E < F.

The embodiment of the present invention provides a kind of traffic state judging device, and this device includes:

Traffic data acquiring unit, for obtaining the first crossing and the traffic data of the second crossing, institute Stating traffic data and at least include that vehicles identifications and vehicle pass through the time, wherein said second crossing is described The Adjacent Intersections of the first crossing；

Determine unit, for being determined in default week by the time according to described vehicles identifications and described vehicle From described second crossing by the average speed of the vehicle of described first crossing in phase, and determine From described second crossing to the maximum stop frequency of the vehicle of described first crossing in predetermined period, and root Vehicle queue length is determined according to described maximum stop frequency；

Traffic behavior determines unit, for according to described average speed, described maximum stop frequency and described vehicle Queue length determines in described predetermined period from described second crossing to the road in described first direction, crossing The traffic behavior of section.

It is also preferred that the left described traffic behavior determines that unit is additionally operable to:

Described section is divided into M cross-talk section, and wherein M is the positive integer more than 0.

It is also preferred that the left described determine unit for:

According to described vehicles identifications and described vehicle by the time determine in described predetermined period vehicle from Described second crossing is by the average stroke duration of described first crossing, and during according to described average stroke Distance between long and described second crossing and described first crossing determines the average speed of vehicle.

It is also preferred that the left described determine unit for:

Determine that vehicle is logical from described second crossing according to described vehicles identifications and described vehicle by the time Cross the average stroke duration of described first crossing, and the stroke duration of each car；

Red light duration according to described average stroke duration and described first crossing determines what secondary was queued up Time critical values；

Stroke duration and the time critical values of described secondary queuing according to each car determine stopping of each car Train number number, determines maximum stop frequency by the stop frequency of each car.

It is also preferred that the left described determine unit for:

If described average stroke duration is more than or equal to described red light duration with the difference of preset duration, then described The time critical values that secondary is queued up is described preset duration and described red light duration sum；

Otherwise, the time critical values that described secondary is queued up is equal with described preset duration.

It is also preferred that the left described determine unit for:

For jth car, the stop frequency P of described vehicle_jFor:

If T_j≤T^l, then P_j≤1；Otherwise,

Wherein, T_jRepresent the stroke duration of jth car, T^lRepresent the time critical values that described secondary is queued up, C Represent the traffic lights cycle duration of described first crossing.

It is also preferred that the left described determine unit for:

Judge that described vehicle maximum stop frequency whether less than or equal to 1, the most then determines institute by below equation State vehicle queue length:

$L=\frac{N}{C}*R*h_s$

Wherein, L represents described vehicle queue length, and N represents and intersects from described second in described predetermined period Mouth is by the vehicle number of the vehicle of described first crossing, when C represents the traffic lights cycle of described first crossing Long, R represents the red light duration of described first crossing, h_sRepresent between the average headstock of the queuing vehicle preset Away from；

Otherwise, it is judged that whether described vehicle maximum stop frequency is integer, if not integer, then by following Formula determines described vehicle queue length:

$L=\frac{N*(P_{\max }-z)+\underset{m=1}{\overset{z}{\mathrm{\&Sigma;}}}{N}_m}{n}*h_s$

Wherein, L represents described vehicle queue length, and N represents and intersects from described second in described predetermined period Mouth is by the vehicle number of the vehicle of described first crossing, and n represents from described second crossing to described first friendship The number of track-lines in prong direction, P_maxRepresenting described vehicle maximum stop frequency, z is for meeting P_max-1<z≤P_maxJust Integer, h_sRepresent the average headway of the queuing vehicle preset,Before representing described predetermined period Z predetermined period passes through the vehicle number of described first crossing.

Otherwise, described vehicle queue length is determined by below equation:

$L=\frac{N+\underset{m=1}{\overset{P_{\max }-1}{\mathrm{\&Sigma;}}}{N}_m}{n}*h_s$

Wherein, L represents described vehicle queue length, and N represents and intersects from described second in described predetermined period Mouth is by the vehicle number of the vehicle of described first crossing, and n represents from described second crossing to described first friendship The number of track-lines in prong direction, P_maxRepresent described vehicle maximum stop frequency, h_sThe queuing vehicle that expression is preset Average headway,Represent the P before described predetermined period_max-1 predetermined period is by described first The vehicle number of crossing.

It is also preferred that the left described traffic behavior determine unit for:

If described average speed is more than or equal to pre-set velocity, and described vehicle queue length is less than preset length, And described maximum stop frequency is less than or equal to presetting stop frequency, it is determined that from institute in described predetermined period State the second crossing and be in the first state to the traffic behavior in the section in described first direction, crossing；

If described average speed is less than preset length, or institute less than pre-set velocity and described vehicle queue length State maximum stop frequency more than presetting stop frequency and described vehicle queue length less than preset length, it is determined that The traffic behavior in section from described second crossing to described first direction, crossing in described predetermined period It is in the second state；

If described vehicle queue length is more than or equal to preset length, it is determined that in described predetermined period The traffic behavior in the section from described second crossing to described first direction, crossing is in the third state.

It is also preferred that the left described traffic behavior determine unit for:

If described average speed is more than or equal to pre-set velocity, and described vehicle queue length is less than or equal to pre- If length, and described maximum stop frequency is less than or equal to presetting stop frequency, it is determined that in described default week From described second crossing to the first cross-talk section in described first direction, crossing to M cross-talk section in phase Traffic behavior be in the first state, wherein, described preset length is to described from described second crossing M/mono-of the road section length of the first crossing；

If described average speed is less than or equal to preset length less than pre-set velocity and described vehicle queue length, Or described maximum stop frequency is more than presetting stop frequency and described vehicle queue length less than or equal to presetting Length, it is determined that the traffic behavior in described first cross-talk section is in the second state, the second cross-talk section to The traffic behavior in M cross-talk section is in the first state；

If described vehicle queue length is more than preset length, it is determined that the traffic in described first cross-talk section State is in the third state, and the traffic behavior in the second cross-talk section is in the second state, and the 3rd cross-talk section is extremely The traffic behavior in M cross-talk section is in the first state；

If the preset length that described vehicle queue length is more than E times, and presetting less than or equal to F times Length, then the traffic behavior in the first cross-talk section to E-1 cross-talk section is in the third state, F cross-talk The traffic behavior in section is in the second state, at F+1 cross-talk section to the traffic behavior in M cross-talk section In the first state, wherein, E and F is positive integer, and 0 < E < F.

By the traffic data got, determine the average speed of vehicle, the maximum of vehicle in predetermined period Stop frequency, and determine vehicle queue length according to described maximum stop frequency, according to average speed, Big stop frequency and vehicle queue length are determined in predetermined period from the second crossing to the first crossing The traffic behavior in the section in direction.The method provided according to embodiments of the present invention, can be by the friendship got Logical data determine the traffic behavior in section more accurately, differentiate process in further detail simultaneously, the differentiation knot obtained The most more specific and be easier to driver accept.

Accompanying drawing explanation

A kind of traffic state judging method flow diagram that Fig. 1 provides for the embodiment of the present invention；

Pavement section between second crossing and the first crossing for what the embodiment of the present invention provided is by Fig. 2 Schematic diagram behind M cross-talk section；

A kind of traffic state judging structure drawing of device that Fig. 3 provides for the embodiment of the present invention.

Detailed description of the invention

Below in conjunction with Figure of description, the embodiment of the present invention is described in detail.

As it is shown in figure 1, a kind of traffic state judging method flow diagram that the embodiment of the present invention provides, the method Including:

Step 101: obtaining the first crossing and the traffic data of the second crossing, described traffic data is at least Passing through the time including vehicles identifications and vehicle, wherein said second crossing is the phase of described first crossing Adjacent crossing；

Step 102: according to described vehicles identifications and described vehicle by the time determine in predetermined period from Described second crossing is by the average speed of the vehicle of described first crossing, and determines in default week From described second crossing to the maximum stop frequency of the vehicle of described first crossing in phase, and according to described Maximum stop frequency determines vehicle queue length；

Step 103: true according to described average speed, described maximum stop frequency and described vehicle queue length It is scheduled in described predetermined period the traffic shape in section from described second crossing to described first direction, crossing State.

In the embodiment of the present invention, the first crossing and the second crossing are merely to distinguish different crossing, and It it not the restriction to crossing.Second crossing can represent an Adjacent Intersections of the first crossing, also Multiple Adjacent Intersections of the first crossing can be represented.

In step 101, by the alert detector acquisition traffic data of coil checker and electricity, coil checker Typically being laid in the position of distance intersection parking line 30m, the data detected at least include passing through crossing The vehicle number of vehicle.The alert detector of electricity can realize meeting car must shooting function, be typically laid in distance crossing The position of stop line 18-23m, data of its detection are the vehicles identifications of vehicle by stop line and vehicle leads to Spend the time.Preferably, vehicles identifications is the number-plate number.When vehicle is by stop line, the alert detector meeting of electricity To capturing by the vehicles identifications of vehicle and identify and time registration of vehicle is passed through by the vehicle of stop line Between.

In step 102, need to determine according to the traffic data got and intersect from second in predetermined period Mouth, by the average speed of the vehicle of the first crossing, determines the maximum parking time of vehicle in predetermined period Number, and determine vehicle queue length.Predetermined period refers to a time period, can be according to practical situation Arrange, can be one hour, it is also possible to be ten hours.

Vehicles identifications and vehicle owing to can get each car pass through the time, then can be by coupling The method of vehicles identifications determines that the vehicle vehicle when different crossing, by the time, may thereby determine that out The stroke duration that vehicle is spent between two Adjacent Intersections.Concrete, a car is from the second crossing Driving towards the first crossing, this vehicle, when by the first crossing and the second crossing, can get this The vehicles identifications of vehicle and vehicle, by the time, will be asked by the time of the first crossing with the second crossing Take difference, it is possible to obtain this vehicle from the second crossing the stroke duration to the first crossing.

Not necessarily directly drive towards the first crossing from the second crossing due to some car, middle meeting is in roadside Stop, cause the stroke duration calculated to have very large deviation, thus determine that vehicle drives towards from the second crossing When the stroke duration of the first crossing is preset the delay time at stop or presets the delay time at stop less than second more than first, The trip time is defined as invalid value.General preset the delay time at stop by first and be set to 1 hour, by second The default delay time at stop is set to 1 minute.First presets the delay time at stop and second presets the concrete of delay time at stop Value is how many also to be determined according to on-site actual situations.

Determine that vehicle is logical from the second crossing in predetermined period according to vehicles identifications and vehicle by the time Cross the average stroke duration of the first crossing, and according to described average stroke duration and described second crossing And the distance between described first crossing determines the average speed of vehicle.Concrete, can be by default week The phase stroke duration of interior all vehicles from the second crossing to the first crossing is determined, by each car It is obtained with vehicle from the second crossing by the first crossing divided by total vehicle number after stroke duration is cumulative Average stroke duration.Preferably, will be greater than first preset the delay time at stop or preset the delay time at stop less than second Stroke duration be defined as invalid value, and determine average stroke duration again after being rejected by invalid value.Or, By the stroke duration of each car calculated according to arranging from big to small, by the stroke of the first minimum percentage ratio After the stroke duration of the second percentage ratio of duration and maximum is rejected, ask for vehicle from the second crossing by the The average stroke duration of one crossing.First percentage ratio can be Arbitrary Digit between 0 to 10%, the second percentage Ratio can be Arbitrary Digit between 0 to 10%.

In calculating predetermined period, vehicle passes through the average stroke duration of the first crossing from the second crossing After, average stroke duration is assured that divided by the distance between the second crossing and described first crossing Go out the average speed of vehicle in predetermined period.

In step 103, determine in predetermined period vehicle from the second crossing by the by step 102 The average stroke duration of one crossing, and be assured that out after the stroke duration of each car in this default week From the second crossing to the maximum stop frequency of the vehicle of the first crossing in phase.Concrete, it is divided into two steps Rapid: step one, determine what secondary was queued up according to the red light duration of average stroke duration and the first crossing Time critical values；Step 2, determines according to the time critical values that stroke duration and the secondary of each car are queued up Go out the stop frequency of each car, determine maximum stop frequency by the stop frequency of each car.

In step one, if the difference of average stroke duration and preset duration is more than or equal to the first crossing Red light duration, the time critical values that the most described secondary is queued up is described preset duration and described red light duration sum；

Otherwise, the time critical values that described secondary is queued up is equal with described preset duration.

Concrete, ifThen T^l=t+R, otherwise T^l=t, whereinFor average stroke duration, t is Preset duration, R is the red light duration of the first crossing, T^lThe time critical values queued up for secondary.

In step 2, for jth car, the stop frequency P of described vehicle_jFor:

If T_j≤T^l, then P_j≤1；Otherwise,

Wherein, T_jRepresent the stroke duration of jth car, T^lRepresent the time critical values that described secondary is queued up, C Represent the traffic lights cycle duration of described first crossing.

In predetermined period, after the stop frequency of each car determines, it may be determined that stop in going out this predetermined period The stop frequency of the vehicle that train number number is maximum, is defined as the car in this predetermined period by the stop frequency of this vehicle Maximum stop frequency.

Vehicle queue length how is determined in being described in this predetermined period below:

First, it is determined that whether described vehicle maximum stop frequency is less than or equal to 1, the most then pass through below equation Determine described vehicle queue length:

$L=\frac{N}{C}*R*h_s$

Wherein, L represents described vehicle queue length, and N represents and intersects from described second in described predetermined period Mouth can be obtained by coil checker detection by the vehicle number of the vehicle of described first crossing, these data； C represents the traffic lights cycle duration of described first crossing, and R represents the red light duration of described first crossing, h_sRepresent the average headway of the queuing vehicle preset；

Otherwise, it is judged that whether described vehicle maximum stop frequency is integer, if not integer, then by following Formula determines described vehicle queue length:

$L=\frac{N*(P_{\max }-z)+\underset{m=1}{\overset{z}{\mathrm{\&Sigma;}}}{N}_m}{n}*h_s$

Wherein, L represents described vehicle queue length, and N represents and intersects from described second in described predetermined period Mouth can be obtained by coil checker detection by the vehicle number of the vehicle of described first crossing, these data； N represents the number of track-lines from described second crossing to described first direction, crossing, P_maxRepresent that described vehicle is Big stop frequency, z is for meeting P_max-1<z≤P_maxPositive integer, h_sRepresent the average car of the queuing vehicle preset Head spacing, general value is any one number between being 5 to 8 meters,Before representing described predetermined period Z predetermined period passes through the vehicle number of described first crossing, and these data can be obtained by coil checker detection ?.

Otherwise determine described vehicle queue length by below equation:

$L=\frac{N+\underset{m=1}{\overset{P_{\max }-1}{\mathrm{\&Sigma;}}}{N}_m}{n}*h_s$

Wherein, L represents described vehicle queue length, and N represents and intersects from described second in described predetermined period Mouth can be obtained by coil checker detection by the vehicle number of the vehicle of described first crossing, these data； N represents the number of track-lines from described second crossing to described first direction, crossing, P_maxRepresent that described vehicle is Big stop frequency, h_sRepresent the average headway of queuing vehicle preset, general value be 5 to 8 meters it Between any one number,Represent the P before described predetermined period_max-1 predetermined period is by described first The vehicle number of crossing, these data can be obtained by coil checker detection.

Knowable to foregoing description, it has been determined that in predetermined period, the average speed of vehicle, vehicle maximum are stopped Number of times and vehicle queue length, below according to these parameter determinations in this predetermined period from the second crossing Traffic behavior to the first crossing.

If described average speed is more than or equal to pre-set velocity, and described vehicle queue length is less than preset length, And described maximum stop frequency is less than or equal to presetting stop frequency, it is determined that from institute in described predetermined period State the second crossing and be in the first state to the traffic behavior in the section in described first direction, crossing；

If described average speed is less than preset length, or institute less than pre-set velocity and described vehicle queue length State maximum stop frequency more than presetting stop frequency and described vehicle queue length less than preset length, it is determined that The traffic behavior in section from described second crossing to described first direction, crossing in described predetermined period It is in the second state；

If described vehicle queue length is more than or equal to preset length, it is determined that in described predetermined period The traffic behavior in the section from described second crossing to described first direction, crossing is in the third state.

Wherein, described preset length is generally the section in section from the second crossing to the first direction, crossing Length, the first state, the second state and the third state represent the relative degree of mobility of traffic behavior, first The degree of mobility of state is better than the second state, and the degree of mobility of the second state is better than the third state, it is also possible to will First state is referred to as unimpeded state, and the second state is referred to as the state of walking or drive slowly, and the third state is referred to as congestion status.

Concrete, it is known that the road section length in the section from the second crossing to the first direction, crossing is^l, then exist In predetermined period, the decision rule of the traffic behavior in this section is as follows:

If 0≤P_max≤P₁, and 0≤L < l, andThe most now the traffic behavior in this section is the first state, The most unimpeded state；

If 0≤L is < l and P_max>P₁；Or 0≤L < l andThe most now the traffic behavior in this section is second State, state of i.e. walking or drive slowly；

If L >=l, spilling of now queuing up is described, then the traffic behavior in this section is the third state, and i.e. block up shape State, wherein L is vehicle queue length,For average speed, P_maxFor maximum stop frequency, P₁Stop for presetting Train number number, V₁For pre-set velocity.

Owing to the road section length in some section is oversize or other reasons, directly differentiate this road according to traffic data The differentiation result that the traffic behavior of section obtains is inaccurate, in order to make traffic state judging result more accurate, In the embodiment of the present invention, also can according to the size of road section length from the second crossing to the first direction, crossing, Described section is divided into M cross-talk section, and wherein M is the positive integer more than 0.As in figure 2 it is shown, be this After what inventive embodiments provided is M cross-talk section by the pavement section between the second crossing and the first crossing Schematic diagram.After section is divided into M cross-talk section, the position in the first cross-talk section to M cross-talk section Sequentially arrange from the first crossing to the second crossing successively.Such as, the section that 600 meters long is divided into 3 Cross-talk section, a length of 200 meters of every cross-talk section.The most such as, the section that 500 meters long is divided into 2 cross-talks Section, a length of 250 meters of every cross-talk section.It is specifically divided into a few cross-talk section to go to determine according to practical situation.

Then according to it has been determined that predetermined period in the average speed of vehicle, vehicle maximum stop frequency and Vehicle queue length, determines the every cross-talk section from the second crossing to the first crossing in this predetermined period Traffic behavior.

Concrete, if described average speed is more than or equal to pre-set velocity, and described vehicle queue length is less than Or equal to preset length, and described maximum stop frequency is less than or equal to presetting stop frequency, it is determined that in institute State in predetermined period from described second crossing to the first cross-talk section in described first direction, crossing to M The traffic behavior in cross-talk section is in the first state, and wherein, described preset length is to intersect from described second Mouth is to M/mono-of the road section length of described first crossing；

If described average speed is less than or equal to preset length less than pre-set velocity and described vehicle queue length, Or described maximum stop frequency is more than presetting stop frequency and described vehicle queue length less than or equal to presetting Length, it is determined that the traffic behavior in described first cross-talk section is in the second state, the second cross-talk section to The traffic behavior in M cross-talk section is in the first state,；

If described vehicle queue length is more than preset length, it is determined that the traffic in described first cross-talk section State is in the third state, and the traffic behavior in the second cross-talk section is in the second state, and the 3rd cross-talk section is extremely The traffic behavior in M cross-talk section is in the first state；

If the preset length that described vehicle queue length is more than E times, and presetting less than or equal to F times Length, then the traffic behavior in the first cross-talk section to E-1 cross-talk section is in the third state, F cross-talk The traffic behavior in section is in the second state, at F+1 cross-talk section to the traffic behavior in M cross-talk section In the first state, wherein, E and F is positive integer, and 0 < E < F.Wherein, the first cross-talk section is to The position in M cross-talk section sequentially arranges from the first crossing to the second crossing successively.

It is described below by specific embodiment.

Embodiment one

The road section length in the known section from the second crossing to the first direction, crossing is l, is divided equally in this section Be 2 cross-talk sections, then in predetermined period, the decision rule of the traffic behavior in every cross-talk section in this section As follows:

If 0≤P_max≤P₁, andAndThe most now first cross-talk section and in this section The traffic behavior in two cross-talk sections is the first state, the most unimpeded state；

IfAnd P_max>P₁, orAndThe most now first cross-talk section in this section Traffic behavior be the second state, state of i.e. walking or drive slowly, the traffic behavior in the second cross-talk section in this section is One state, the most unimpeded state；

IfThen illustrate that now queue length is more than the first cross-talk section, the then first cross-talk road in this section The traffic behavior of section is the third state, i.e. congestion status, and the traffic behavior in the second cross-talk section in this section is Second state, state of i.e. walking or drive slowly；

If l≤L, the now queue length road section length not less than this section, the then first paragraph in this section are described The traffic behavior in sub-section and the second cross-talk section is the third state, i.e. congestion status, and wherein L is vehicle Queue length,For average speed, P_maxFor maximum stop frequency, P₁For default stop frequency, V₁It is default Speed.

Embodiment two

The road section length in the known section from the second crossing to the first direction, crossing is l, is divided equally in this section Be 3 cross-talk sections, then in predetermined period, the decision rule of the traffic behavior in every cross-talk section in this section As follows:

If 0≤P_max≤P₁, andAndThe most now the first cross-talk section in this section, second The traffic behavior in cross-talk section and the 3rd cross-talk section is the first state, the most unimpeded state；

IfAnd P_max>P₁, orAndThe most now first cross-talk section in this section Traffic behavior be the second state, state of i.e. walking or drive slowly, the traffic behavior in the second cross-talk section in this section is One state, the most unimpeded state；

IfThe now queue length length more than the first cross-talk section, then the first of this section are then described The traffic behavior in cross-talk section is the third state, i.e. congestion status, the traffic in the second cross-talk section in this section State is the second state, state of i.e. walking or drive slowly, and the traffic behavior in the 3rd cross-talk section in this section is the first shape State, the most unimpeded state；

IfThen the first cross-talk section in this section and the traffic behavior in the second cross-talk section are Three condition, i.e. congestion status, the traffic behavior in the 3rd cross-talk section in this section is the second state, i.e. walks or drive slowly State；

If L > l, the then first cross-talk section in this section, the second cross-talk section and the friendship in the 3rd cross-talk section Logical state is the third state, i.e. congestion status, and wherein L is vehicle queue length,For average speed, P_max For maximum stop frequency, P₁For default stop frequency, V₁For pre-set velocity.

It is divided into the situation in any cross-talk section the most not from the second crossing to the section in the first direction, crossing Repeat again, be referred to said method flow process and realize the differentiation of traffic behavior.

For said method flow process, the embodiment of the present invention also provides for a kind of traffic state judging device, this device Particular content be referred to said method implement, do not repeat them here.

As it is shown on figure 3, a kind of traffic state judging structure drawing of device that the embodiment of the present invention provides, including:

Traffic data acquiring unit 301, for obtaining the first crossing and the traffic data of the second crossing, Described traffic data at least includes that vehicles identifications and vehicle pass through the time, and wherein said second crossing is institute State the Adjacent Intersections of the first crossing；

Determine unit 302, for being determined default by the time according to described vehicles identifications and described vehicle From described second crossing by the average speed of the vehicle of described first crossing in cycle, and determine Maximum stop frequency from described second crossing to the vehicle of described first crossing in predetermined period, and Vehicle queue length is determined according to described maximum stop frequency；

Traffic behavior determines unit 303, for according to described average speed, described maximum stop frequency and institute State vehicle queue length to determine in described predetermined period from described second crossing to described first crossing side To the traffic behavior in section.

It is also preferred that the left described traffic behavior determines that unit 303 is additionally operable to:

Described section is divided into M cross-talk section, and wherein M is the positive integer more than 0.

It is also preferred that the left described determine unit for:

According to described vehicles identifications and described vehicle by the time determine in described predetermined period vehicle from Described second crossing is by the average stroke duration of described first crossing, and during according to described average stroke Distance between long and described second crossing and described first crossing determines the average speed of vehicle.

It is also preferred that the left described determine unit 302 for:

Determine that vehicle is logical from described second crossing according to described vehicles identifications and described vehicle by the time Cross the average stroke duration of described first crossing, and the stroke duration of each car；

Red light duration according to described average stroke duration and described first crossing determines what secondary was queued up Time critical values；

Stroke duration and the time critical values of described secondary queuing according to each car determine stopping of each car Train number number, determines maximum stop frequency by the stop frequency of each car.

It is also preferred that the left described determine unit 302 for:

If described average stroke duration is more than or equal to described red light duration with the difference of preset duration, then described The time critical values that secondary is queued up is described preset duration and described red light duration sum；

Otherwise, the time critical values that described secondary is queued up is equal with described preset duration.

It is also preferred that the left described determine unit for:

For jth car, the stop frequency P of described vehicle_jFor:

If T_j≤T^l, then P_j≤1；Otherwise,

Wherein, T_jRepresent the stroke duration of jth car, T^lRepresent the time critical values that described secondary is queued up, C Represent the traffic lights cycle duration of described first crossing.

It is also preferred that the left described determine unit 302 for:

Judge that described vehicle maximum stop frequency whether less than or equal to 1, the most then determines institute by below equation State vehicle queue length:

$L=\frac{N}{C}*R*h_s$

Wherein, L represents described vehicle queue length, and N represents and intersects from described second in described predetermined period Mouth is by the vehicle number of the vehicle of described first crossing, when C represents the traffic lights cycle of described first crossing Long, R represents the red light duration of described first crossing, h_sRepresent between the average headstock of the queuing vehicle preset Away from；

Otherwise, it is judged that whether described vehicle maximum stop frequency is integer, if not integer, then by following Formula determines described vehicle queue length:

$L=\frac{N*(P_{\max }-z)+\underset{m=1}{\overset{z}{\mathrm{\&Sigma;}}}{N}_m}{n}*h_s$

Wherein, L represents described vehicle queue length, and N represents and intersects from described second in described predetermined period Mouth is by the vehicle number of the vehicle of described first crossing, and n represents from described second crossing to described first friendship The number of track-lines in prong direction, P_maxRepresenting described vehicle maximum stop frequency, z is for meeting P_max-1<z≤P_maxJust Integer, h_sRepresent the average headway of the queuing vehicle preset,Before representing described predetermined period Z predetermined period passes through the vehicle number of described first crossing.

Otherwise, described vehicle queue length is determined by below equation:

$L=\frac{N+\underset{m=1}{\overset{P_{\max }-1}{\mathrm{\&Sigma;}}}{N}_m}{n}*h_s$

Wherein, L represents described vehicle queue length, and N represents and intersects from described second in described predetermined period Mouth is by the vehicle number of the vehicle of described first crossing, and n represents from described second crossing to described first friendship The number of track-lines in prong direction, P_maxRepresent described vehicle maximum stop frequency, h_sThe queuing vehicle that expression is preset Average headway,Represent the P before described predetermined period_max-1 predetermined period is by described first The vehicle number of crossing.

It is also preferred that the left described traffic behavior determine unit 303 for:

If described average speed is more than or equal to pre-set velocity, and described vehicle queue length is less than preset length, And described maximum stop frequency is less than or equal to presetting stop frequency, it is determined that from institute in described predetermined period State the second crossing and be in the first state to the traffic behavior in the section in described first direction, crossing；

If described average speed is less than preset length, or institute less than pre-set velocity and described vehicle queue length State maximum stop frequency more than presetting stop frequency and described vehicle queue length less than preset length, it is determined that The traffic behavior in section from described second crossing to described first direction, crossing in described predetermined period It is in the second state；

If described vehicle queue length is more than or equal to preset length, it is determined that in described predetermined period The traffic behavior in the section from described second crossing to described first direction, crossing is in the third state.

It is also preferred that the left described traffic behavior determine unit 303 for:

If described average speed is more than or equal to pre-set velocity, and described vehicle queue length is less than or equal to pre- If length, and described maximum stop frequency is less than or equal to presetting stop frequency, it is determined that in described default week From described second crossing to the first cross-talk section in described first direction, crossing to M cross-talk section in phase Traffic behavior be in the first state, wherein, described preset length is to described from described second crossing M/mono-of the road section length of the first crossing；

If described average speed is less than or equal to preset length less than pre-set velocity and described vehicle queue length, Or described maximum stop frequency is more than presetting stop frequency and described vehicle queue length less than or equal to presetting Length, it is determined that the traffic behavior in described first cross-talk section is in the second state, the second cross-talk section to The traffic behavior in M cross-talk section is in the first state；

If described vehicle queue length is more than preset length, it is determined that the traffic in described first cross-talk section State is in the third state, and the traffic behavior in the second cross-talk section is in the second state, and the 3rd cross-talk section is extremely The traffic behavior in M cross-talk section is in the first state；

If the preset length that described vehicle queue length is more than E times, and presetting less than or equal to F times Length, then the traffic behavior in the first cross-talk section to E-1 cross-talk section is in the third state, F cross-talk The traffic behavior in section is in the second state, at F+1 cross-talk section to the traffic behavior in M cross-talk section In the first state, wherein, E and F is positive integer, and 0 < E < F.

In sum, by the traffic data got, determine the average speed of vehicle in predetermined period, The maximum stop frequency of vehicle, and determine vehicle queue length according to described maximum stop frequency, according to flat All speed, maximum stop frequency and vehicle queue length determine in predetermined period from the second crossing to The traffic behavior in the section of the first direction, crossing.The method provided according to embodiments of the present invention, can pass through The traffic data got determines the traffic behavior in section more accurately.In the embodiment of the present invention, pass through coil Traffic behavior is differentiated by the data of detector detector acquisition alert with electricity, overcomes and sentences based on single source data The inherent limitation of other traffic behavior, it is ensured that differentiate the accuracy of result and actual applicability, it is possible to According to road section length, is classified in section, segmentation, refined decision rule, strengthened differentiation dynamics, real Show and differentiated that the segmentation of state shows so that differentiated that result more meets driver's impression.

Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter Calculation machine program product.Therefore, the present invention can use complete hardware embodiment, complete software implementation or knot The form of the embodiment in terms of conjunction software and hardware.And, the present invention can use and wherein wrap one or more Computer-usable storage medium containing computer usable program code (include but not limited to disk memory and Optical memory etc.) form of the upper computer program implemented.

The present invention is with reference to method, equipment (system) and computer program according to embodiments of the present invention Flow chart and/or block diagram describe.It should be understood that can by computer program instructions flowchart and/ Or flow process in each flow process in block diagram and/or square frame and flow chart and/or block diagram and/or The combination of square frame.These computer program instructions can be provided to general purpose computer, special-purpose computer, embedded The processor of datatron or other programmable data processing device is to produce a machine so that pass through computer Or the instruction that the processor of other programmable data processing device performs produces for realizing at flow chart one stream The device of the function specified in journey or multiple flow process and/or one square frame of block diagram or multiple square frame.

These computer program instructions may be alternatively stored in and can guide computer or other programmable data processing device In the computer-readable memory worked in a specific way so that be stored in this computer-readable memory Instruction produces the manufacture including command device, and this command device realizes at one flow process of flow chart or multiple stream The function specified in journey and/or one square frame of block diagram or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, makes Sequence of operations step must be performed to produce computer implemented place on computer or other programmable devices Reason, thus the instruction performed on computer or other programmable devices provides for realizing flow chart one The step of the function specified in flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.

Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.

Claims (16)

1. a traffic state judging method, it is characterised in that the method includes:

Obtaining the first crossing and the traffic data of the second crossing, described traffic data at least includes that vehicles identifications and vehicle pass through the time, and wherein said second crossing is the Adjacent Intersections of described first crossing；

The average speed of the vehicle passing through described first crossing in predetermined period from described second crossing is determined by the time according to described vehicles identifications and described vehicle, and determine in predetermined period the maximum stop frequency from described second crossing to the vehicle of described first crossing, concrete, according to described vehicles identifications and described vehicle by the time determine vehicle from described second crossing by the average stroke duration of described first crossing, and the stroke duration of each car；Red light duration according to described average stroke duration and described first crossing determines the time critical values that secondary is queued up；The time critical values that stroke duration according to each car and described secondary are queued up determines the stop frequency of each car, determines maximum stop frequency by the stop frequency of each car；Vehicle queue length is determined according to described maximum stop frequency；

The traffic behavior in section from described second crossing to described first direction, crossing is determined in described predetermined period according to described average speed, described maximum stop frequency and described vehicle queue length.

2. the method for claim 1, it is characterized in that, described according to described average speed, before described maximum stop frequency and described vehicle queue length determine in described predetermined period from described second crossing to the traffic behavior in the section in described first direction, crossing, also include:

Described section is divided into M cross-talk section, and wherein M is the positive integer more than 0.

3. method as claimed in claim 1 or 2, it is characterised in that described determine the average speed of the vehicle passing through described first crossing in predetermined period from described second crossing according to described vehicles identifications and described vehicle by the time, including:

According to described vehicles identifications and described vehicle by the time determine in described predetermined period vehicle from described second crossing by the average stroke duration of described first crossing, and determine the average speed of vehicle according to the distance between described average stroke duration and described second crossing and described first crossing.

4. the method for claim 1, it is characterised in that the described red light duration according to described average stroke duration and described first crossing determines the time critical values that secondary is queued up, including:

If described average stroke duration is more than or equal to described red light duration with the difference of preset duration, the time critical values that the most described secondary is queued up is described preset duration and described red light duration sum；

Otherwise, the time critical values that described secondary is queued up is equal with described preset duration.

5. the method for claim 1, it is characterised in that the time critical values that the described stroke duration according to each car and described secondary are queued up determines the stop frequency of each car, including:

For jth car, the stop frequency P of described vehicle_jFor:

If T_j≤T^l, then P_j≤1；Otherwise,

Wherein, T_jRepresent the stroke duration of jth car, T^lRepresenting the time critical values that described secondary is queued up, C represents the traffic lights cycle duration of described first crossing.

6. method as claimed in claim 1 or 2, it is characterised in that described determine vehicle queue length according to described vehicle maximum stop frequency, including:

Judge that described vehicle maximum stop frequency whether less than or equal to 1, the most then determines described vehicle queue length by below equation:

Wherein, L represents described vehicle queue length, and N represents the vehicle number of the vehicle passing through described first crossing in described predetermined period from described second crossing, and C represents the traffic lights cycle duration of described first crossing, R represents the red light duration of described first crossing, h_sRepresent the average headway of the queuing vehicle preset；

Otherwise, it is judged that whether described vehicle maximum stop frequency is integer, if not integer, then described vehicle queue length is determined by below equation:

Wherein, L represents described vehicle queue length, and N represents the vehicle number of the vehicle passing through described first crossing in described predetermined period from described second crossing, and n represents the number of track-lines from described second crossing to described first direction, crossing, P_maxRepresenting described vehicle maximum stop frequency, z is for meeting P_max-1<z≤P_maxPositive integer, h_sRepresent the average headway of the queuing vehicle preset,The vehicle number by described first crossing of z the predetermined period before representing described predetermined period；

Otherwise, described vehicle queue length is determined by below equation:

Wherein, L represents described vehicle queue length, and N represents the vehicle number of the vehicle passing through described first crossing in described predetermined period from described second crossing, and n represents the number of track-lines from described second crossing to described first direction, crossing, P_maxRepresent described vehicle maximum stop frequency, h_sRepresent the average headway of the queuing vehicle preset,Represent the P before described predetermined period_max-1 predetermined period passes through the vehicle number of described first crossing.

7. the method for claim 1, it is characterized in that, described according to described average speed, described maximum stop frequency and described vehicle queue length determine in described predetermined period the traffic behavior in section from described second crossing to described first direction, crossing, including:

If described average speed is more than or equal to pre-set velocity, and described vehicle queue length is less than preset length, and described maximum stop frequency is less than or equal to presetting stop frequency, it is determined that in described predetermined period, the traffic behavior in section from described second crossing to described first direction, crossing is in the first state；

If described average speed is less than preset length less than pre-set velocity and described vehicle queue length, or described maximum stop frequency is more than presetting stop frequency and described vehicle queue length less than preset length, it is determined that in described predetermined period, the traffic behavior in section from described second crossing to described first direction, crossing is in the second state；

If described vehicle queue length is more than or equal to preset length, it is determined that in described predetermined period, the traffic behavior in section from described second crossing to described first direction, crossing is in the third state.

8. method as claimed in claim 2, it is characterized in that, described according to described average speed, described maximum stop frequency and described vehicle queue length determine in described predetermined period the traffic behavior in section from described second crossing to described first direction, crossing, including:

If described average speed is more than or equal to pre-set velocity, and described vehicle queue length is less than or equal to preset length, and described maximum stop frequency is less than or equal to presetting stop frequency, then determine that in described predetermined period the traffic behavior in the first cross-talk section to the M cross-talk section from described second crossing to described first direction, crossing is in the first state, wherein, described preset length is M/mono-from described second crossing to the road section length of described first crossing；

If described average speed is less than or equal to preset length less than pre-set velocity and described vehicle queue length, or described maximum stop frequency is more than presetting stop frequency and described vehicle queue length less than or equal to preset length, then determining that the traffic behavior in described first cross-talk section is in the second state, the traffic behavior in the second cross-talk section to M cross-talk section is in the first state；

If described vehicle queue length is more than preset length, it is determined that the traffic behavior in described first cross-talk section is in the third state, and the traffic behavior in the second cross-talk section is in the second state, and the traffic behavior in the 3rd cross-talk section to M cross-talk section is in the first state；

If the preset length that described vehicle queue length is more than E times, and the preset length less than or equal to F times, then the traffic behavior in the first cross-talk section to E-1 cross-talk section is in the third state, the traffic behavior in F cross-talk section is in the second state, the traffic behavior in F+1 cross-talk section to M cross-talk section is in the first state, wherein, E and F is positive integer, and 0 < E < F.

9. a traffic state judging device, it is characterised in that this device includes:

Traffic data acquiring unit, for obtaining the first crossing and the traffic data of the second crossing, described traffic data at least includes that vehicles identifications and vehicle pass through the time, and wherein said second crossing is the Adjacent Intersections of described first crossing；

Determine unit, for determining the average speed of the vehicle passing through described first crossing in predetermined period from described second crossing according to described vehicles identifications and described vehicle by the time, and determine in predetermined period the maximum stop frequency from described second crossing to the vehicle of described first crossing, concrete, according to described vehicles identifications and described vehicle by the time determine vehicle from described second crossing by the average stroke duration of described first crossing, and the stroke duration of each car；Red light duration according to described average stroke duration and described first crossing determines the time critical values that secondary is queued up；The time critical values that stroke duration according to each car and described secondary are queued up determines the stop frequency of each car, determines maximum stop frequency by the stop frequency of each car；And determine vehicle queue length according to described maximum stop frequency；

Traffic behavior determines unit, for determining in described predetermined period the traffic behavior in section from described second crossing to described first direction, crossing according to described average speed, described maximum stop frequency and described vehicle queue length.

10. device as claimed in claim 9, it is characterised in that described traffic behavior determines that unit is additionally operable to:

Described section is divided into M cross-talk section, and wherein M is the positive integer more than 0.

11. devices as described in claim 9 or 10, it is characterised in that described determine unit for:

According to described vehicles identifications and described vehicle by the time determine in described predetermined period vehicle from described second crossing by the average stroke duration of described first crossing, and determine the average speed of vehicle according to the distance between described average stroke duration and described second crossing and described first crossing.

12. devices as claimed in claim 9, it is characterised in that described determine unit for:

If described average stroke duration is more than or equal to described red light duration with the difference of preset duration, the time critical values that the most described secondary is queued up is described preset duration and described red light duration sum；

Otherwise, the time critical values that described secondary is queued up is equal with described preset duration.

13. devices as claimed in claim 9, it is characterised in that described determine unit for:

For jth car, the stop frequency P of described vehicle_jFor:

If T_j≤T^l, then P_j≤1；Otherwise,

Wherein, T_jRepresent the stroke duration of jth car, T^lRepresenting the time critical values that described secondary is queued up, C represents the traffic lights cycle duration of described first crossing.

14. devices as described in claim 9 or 10, it is characterised in that described determine unit for:

Judge that described vehicle maximum stop frequency whether less than or equal to 1, the most then determines described vehicle queue length by below equation:

Wherein, L represents described vehicle queue length, and N represents the vehicle number of the vehicle passing through described first crossing in described predetermined period from described second crossing, and C represents the traffic lights cycle duration of described first crossing, R represents the red light duration of described first crossing, h_sRepresent the average headway of the queuing vehicle preset；

Otherwise, it is judged that whether described vehicle maximum stop frequency is integer, if not integer, then described vehicle queue length is determined by below equation:

Wherein, L represents described vehicle queue length, and N represents the vehicle number of the vehicle passing through described first crossing in described predetermined period from described second crossing, and n represents the number of track-lines from described second crossing to described first direction, crossing, P_maxRepresenting described vehicle maximum stop frequency, z is for meeting P_max-1<z≤P_maxPositive integer, h_sRepresent the average headway of the queuing vehicle preset,The vehicle number by described first crossing of z the predetermined period before representing described predetermined period；

Otherwise, described vehicle queue length is determined by below equation:

Wherein, L represents described vehicle queue length, and N represents the vehicle number of the vehicle passing through described first crossing in described predetermined period from described second crossing, and n represents the number of track-lines from described second crossing to described first direction, crossing, P_maxRepresent described vehicle maximum stop frequency, h_sRepresent the average headway of the queuing vehicle preset,Represent the P before described predetermined period_max-1 predetermined period passes through the vehicle number of described first crossing.

15. devices as claimed in claim 9, it is characterised in that described traffic behavior determine unit for:

If described average speed is more than or equal to pre-set velocity, and described vehicle queue length is less than preset length, and described maximum stop frequency is less than or equal to presetting stop frequency, it is determined that in described predetermined period, the traffic behavior in section from described second crossing to described first direction, crossing is in the first state；

If described average speed is less than preset length less than pre-set velocity and described vehicle queue length, or described maximum stop frequency is more than presetting stop frequency and described vehicle queue length less than preset length, it is determined that in described predetermined period, the traffic behavior in section from described second crossing to described first direction, crossing is in the second state；

If described vehicle queue length is more than or equal to preset length, it is determined that in described predetermined period, the traffic behavior in section from described second crossing to described first direction, crossing is in the third state.

16. devices as claimed in claim 10, it is characterised in that described traffic behavior determine unit for:

If described average speed is more than or equal to pre-set velocity, and described vehicle queue length is less than or equal to preset length, and described maximum stop frequency is less than or equal to presetting stop frequency, then determine that in described predetermined period the traffic behavior in the first cross-talk section to the M cross-talk section from described second crossing to described first direction, crossing is in the first state, wherein, described preset length is M/mono-from described second crossing to the road section length of described first crossing；

If described average speed is less than or equal to preset length less than pre-set velocity and described vehicle queue length, or described maximum stop frequency is more than presetting stop frequency and described vehicle queue length less than or equal to preset length, then determining that the traffic behavior in described first cross-talk section is in the second state, the traffic behavior in the second cross-talk section to M cross-talk section is in the first state；

If described vehicle queue length is more than preset length, it is determined that the traffic behavior in described first cross-talk section is in the third state, and the traffic behavior in the second cross-talk section is in the second state, and the traffic behavior in the 3rd cross-talk section to M cross-talk section is in the first state；

If the preset length that described vehicle queue length is more than E times, and the preset length less than or equal to F times, then the traffic behavior in the first cross-talk section to E-1 cross-talk section is in the third state, the traffic behavior in F cross-talk section is in the second state, the traffic behavior in F+1 cross-talk section to M cross-talk section is in the first state, wherein, E and F is positive integer, and 0 < E < F.