CN102254443B - Intermittent bus lane control system - Google Patents
Intermittent bus lane control system Download PDFInfo
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- CN102254443B CN102254443B CN 201110176930 CN201110176930A CN102254443B CN 102254443 B CN102254443 B CN 102254443B CN 201110176930 CN201110176930 CN 201110176930 CN 201110176930 A CN201110176930 A CN 201110176930A CN 102254443 B CN102254443 B CN 102254443B
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Abstract
The invention discloses an intermittent bus lane control system and an intermittent bus lane control method. The control system comprises a vehicle detection unit, a global positioning system (GPS) bus positioning and detecting unit, a communication unit, a bus priority processing unit, a bus priority control unit and external display equipment, wherein the external display equipment comprises a road marking lamp and a variable information plate and is used for identifying the available state of an intermittent bus lane for social vehicles. The control method comprises a road main area control method and an intersection channelizing control method. The external display equipment is adopted to forbid the social vehicles from entering the intermittent bus lane within a particular time slot to ensure the priority of running of a bus, the dynamic characteristic of the utilization of road resources by public transport with low-frequency departure interval is taken into full consideration, the social vehicles are allowed to enter the intermittent bus lane for running under the condition of non-occupancy of the road resources by the bus, so the utilization rate of the road sources is improved, and the optimal configuration of the sources is realized.
Description
Technical field
The present invention relates to control system and the method for a kind of batch (-type) public transportation lane (IBL, intermittent bus lane), belong to the public transport technical field.
Background technology
Increasingly serious along with urban transport problems first developed the common recognition that public transport has become countries in the world.Public transportation lane is important measures of public traffic in priority, has obtained good effect at aspects such as alleviating urban traffic congestion, energy savings, minimizing urban air pollution.
Yet common public transportation lane is applicable on the bigger urban road of bus flow.For the bigger urban road of the less and social magnitude of traffic flow of bus flow, open up the minimizing that public transportation lane can cause social track bar number, the reduction of traffic capacity utilization factor, and might increase the mean delay of public vehicles and the fragility of traffic system; And do not open up public transportation lane, can cause the public bus network operation situation relatively poor again, and then influence the attractive force of public transport.
How to coordinate public traffic in priority and path resource utilization factor than the contradiction between low, should cause enough attention of people.But known to the inventor, at present in China, also there is not practicable method to solve this problem.
Summary of the invention
Technical matters to be solved by this invention is the contradiction between low at public traffic in priority and path resource utilization factor on the bigger urban road of the less and social magnitude of traffic flow of public transport flow, and a kind of control system and method for batch (-type) public transportation lane is provided.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of batch (-type) public transportation lane control system comprises,
1. vehicle detection unit, for detection of on the social track and the Real-time Traffic Information on the batch (-type) public transportation lane, described Real-time Traffic Information comprises public vehicles speed information and traffic flow information;
2. GPS bus location and detecting unit are used for the arrival of location and detection bus;
3. the outer equipment that shows comprises pavement marker lamp and variable information plate, is used for sign batch (-type) public transportation lane to the upstate of public vehicles;
4. the public traffic in priority processing unit is used for the testing result according to vehicle detection unit, GPS bus location and detecting unit, judges that comprehensively the back generates control strategy;
5. the public traffic in priority control module is used for according to the outer equipment that shows of the control strategy control of public traffic in priority processing unit;
6. communication unit be used for detected Real-time Traffic Information is transferred to the public traffic in priority processing unit, and the control strategy that the public traffic in priority processing unit is generated is transferred in the public traffic in priority control module.
Further, in a kind of batch (-type) public transportation lane control system of the present invention, the pavement marker lamp adopts light emitting diode, along road vertically with between the common social track of 5 meters be disposed on and the batch (-type) public transportation lane.
Further, in a kind of batch (-type) public transportation lane control system of the present invention, the quantity of variable information plate is two, wherein near the starting point that is placed on crossing canalization section, be used for the prompting vehicle and when lane change, select corresponding track, another piece is placed near the intersection parking line, is used for showing whether entrance driveway is available to public vehicles.
The pavement marker lamp is controlled the public vehicles on the main areas of highway section in the following way, comprises following strategy:
2.1, when the public traffic in priority processing unit generates the pavement marker lamp and opens bright control strategy, pavement marker lamp system-wide Duan Qiliang forbids that public vehicles enter the batch (-type) public transportation lane;
2.2, when the pavement marker lamp opens when bright, the public vehicles of not forcing to have travelled at the batch (-type) public transportation lane are converted into social lanes;
2.3, after bus enters the batch (-type) public transportation lane, along with bus moves ahead, bus upstream pavement marker lamp extinguishes successively, allows public vehicles to enter;
2.4, when pavement marker lamp system-wide section is extinguished, the batch (-type) public transportation lane on the main areas of highway section is all open to public vehicles, is equal to social track.
Two blocks of variable information plates or column are placed on the road roadside or cantilevered is placed on the special-purpose entrance driveway of batch (-type) public transport top, is used for sign batch (-type) public transportation lane to the upstate of public vehicles.
For solving above technical matters, the present invention also provides 2 kinds of batch (-type) public transportation lane control methods,
Wherein, the batch (-type) public transportation lane control method based on the highway section main areas may further comprise the steps:
Step 101 detects the bus current position information, collects this upstream, highway section intersection signal timing scheme;
Step 102 is calculated the time T that bus sails the batch (-type) public transportation lane into by current location,
Wherein, l is that the bus current location is to the distance of the starting point in the highway section that the batch (-type) public transportation lane is set, v
BusBe the bus expectation operation speed of a motor vehicle,
Be the delay time at stop of bus in the crossing, upstream;
Step 103 according to the detected public vehicles speed information in vehicle detection unit, is calculated the highway section and is emptied time t
α,
Wherein, L is the road section length that the batch (-type) public transportation lane is set, and gets the distance between the canalization section of intersection exit road, upstream to crossing, downstream, v
CarBe the public vehicles speed of a motor vehicle;
Step 104 is as T≤t
αThe time, open bright pavement marker lamp and forbid that public vehicles enter public transportation lane.
Batch (-type) public transportation lane control method based on crossing canalization section may further comprise the steps:
Step 201 opens Δ t period before bright at a last red light, calculates when the batch (-type) public transportation lane is open to public vehicles in next signal period the queuing resolution time t of public vehicles
m=sr/ (s-q); Wherein, Δ t is the required reaction time of system-computed, and s is the saturation volume rate of crossing when the batch (-type) public transportation lane is open to public vehicles, and q is the mean value of crossing's public vehicles arrival rate, and r is signalized intersections red light duration;
Step 202 is calculated initial search radius R ', R '
d＜R '＜R '
u, R ' wherein
u, R '
dBe respectively the bound of initial search radius, R '
u=(t
m+ Δ t) * v
Bus, R '
d=Δ t*v
BusV wherein
BusBe the bus expectation operation speed of a motor vehicle, t
mQueuing resolution time for public vehicles;
Step 203 detects the bus stop number i that exists in the initial search radius bound, j, i, j=0,1,2L L;
Step 204 is determined search radius R, R
d＜R＜R
u, R
u=(t
m+ Δ t-i*t
s) * v
Bus, R
d=(Δ t-j*t
s) * v
Bus, t
sBe the assembly average of bus at the website berthing time;
Step 205 is calculated the distance L between current bus and the downstream intersection parking line;
Step 206 is as L ∈ { R|R
d＜R＜R
uThe time, at t
mOpen the batch (-type) public transportation lane in the+Δ t period, only allow public transit vehicle to enter this track; Otherwise, in the next cycle, allow public vehicles to enter the batch (-type) public transportation lane.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1, in certain period of time, forbid that by the outer equipment that shows public vehicles enter the batch (-type) public transportation lane, guarantee the right-of-way of bus, can embody public traffic in priority preferably.
2, taken into full account the public transport of low frequency departure interval to the dynamic of path resource utilization, do not take at bus under the situation of path resource, allow public vehicles to enter the batch (-type) public transportation lane and travel, improved the utilization factor of path resource, realized distributing rationally of resource.
Description of drawings
Fig. 1 is batch (-type) public transportation lane control system structural drawing.
Fig. 2 is the process flow diagram of batch (-type) public transportation lane control method on the main areas of highway section.
Fig. 3 is the process flow diagram of batch (-type) public transportation lane control method on the canalization section of crossing.
Fig. 4 is the distribution schematic diagram of pavement marker lamp on the highway section.
Fig. 5 is for working as bus at (0, t
m) when arriving the crossing in the period, the batch (-type) public transportation lane is enabled synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is described in further detail:
As shown in Figure 1, the control system of a kind of batch (-type) public transportation lane of the present invention comprises vehicle detection unit, GPS bus location and detecting unit, communication unit, public traffic in priority processing unit, public traffic in priority control module and shows equipment six major parts outward, wherein:
1, vehicle detection unit, comprise be arranged on the social track and the batch (-type) public transportation lane on detecting device, generally be arranged in the upstream of each every entrance driveway in crossing.This unit mainly be responsible for by corresponding checkout equipment detect on the social track and the batch (-type) public transportation lane on Real-time Traffic Information, comprise speed information and the traffic flow information of public vehicles.
2, GPS bus location and detecting unit are used for the arrival of location and detection bus.Obtain the data such as ID, temporal information, longitude and latitude, speed, geographic position of each bus by GPS public transit vehicle dispatching system.Gps data data longitude and latitude positioning error should be less than 20 meters, and the time delay rate was less than 3 seconds, and the locator data sampling period is at interval less than 4 seconds.These accuracy requirements are in order to guarantee accuracy and the real-time of GPS location;
3, communication unit is transferred to the public traffic in priority processing unit with the detected Real-time Traffic Information in vehicle detection unit;
4, public traffic in priority processing unit according to bus positional information and the next public vehicles Real-time Traffic Information of vehicle detection unit transmission that the transmission of GPS public transport positioning unit comes, is comprehensively judged the public transport priority strategy, generates control strategy.
Wherein, urban road is divided into highway section main areas and crossing canalization section two parts, adopts different control strategies respectively.
Control strategy on a, the highway section main areas
On the main areas of highway section, generate the flow process of control strategy as shown in Figure 2, specific as follows:
(1), detect the bus current position information, collect this upstream, highway section intersection signal timing scheme;
(2), calculate the time T that bus sails the batch (-type) public transportation lane into by current location,
(3), according to the detected public vehicles speed information in vehicle detection unit, calculate the highway section and empty time t
α,
(4), as T≤t
αThe time, open bright pavement marker lamp.
Wherein l is that the bus current location is to the distance of the starting point in the highway section that the batch (-type) public transportation lane is set, v
BusThe bus expectation operation speed of a motor vehicle,
Be the delay time at stop of bus in the crossing, upstream, constantly relevant with bus arrival crossing with crossing, upstream timing scheme, L is the road section length that the batch (-type) public transportation lane is set, and gets the distance between the canalization section of intersection exit road, upstream to crossing, downstream, v
CarBe the public vehicles speed of a motor vehicle.
Control strategy on b, the crossing canalization section
On the canalization section of crossing, generate the flow process of control strategy as shown in Figure 3, specific as follows:
(1), open Δ t period before bright at red light, calculated when following one-period, the batch (-type) public transportation lane was open to public vehicles the queuing resolution time t of public vehicles
m=sr/ (s-q);
(2), calculate initial search radius R '
d＜R '＜R '
u, wherein, R '
u, R '
dBe respectively the bound of initial search radius, R '
u=(t
m+ Δ t) * v
Bus, R '
d=Δ t*v
Bus
(3), detect the bus stop number i that exists in the initial search radius bound, j, i, j=0,1,2L L;
(4), determine search radius R
d＜R＜R
u, R
u=(t
m+ Δ t-i*t
s) * v
Bus, R
d=(Δ t-j*t
s) * v
Bus, t
sBe the assembly average of bus at the website berthing time;
(5), the distance L between the current bus of calculating and the downstream intersection parking line;
(6), as L ∈ { R|R
d＜R＜R
uThe time, at t
mThe batch (-type) public transportation lane is opened in+Δ t the period, only allows public transit vehicle to enter this track; As shown in Figure 5, when bus at (0, t
m) when arriving the crossing in the period, the batch (-type) public transportation lane is enabled; Otherwise, in the next cycle, allow public vehicles to enter the batch (-type) public transportation lane.
Wherein Δ t is the reaction time of system, and s is the saturation volume rate of crossing when the batch (-type) public transportation lane is open to public vehicles, and q is the mean value of crossing's public vehicles arrival rate, v
BusThe bus expectation operation speed of a motor vehicle, t
sBe the assembly average of bus at the website berthing time, r is signalized intersections red light duration.
5, communication unit passes to the public traffic in priority control module with the control strategy that the public traffic in priority processing unit produces;
6, public traffic in priority control module, according to control strategy, the outer equipment that shows of control.
7, show equipment outward, comprise pavement marker lamp and variable information plate, be used for sign batch (-type) public transportation lane to the upstate of public vehicles.
Wherein, the pavement marker lamp is arranged on the main areas of highway section, adopts light emitting diode, vertically with between the common social track of 5 meters be disposed on and the batch (-type) public transportation lane, as shown in Figure 4, the pavement marker lamp is controlled the public vehicles on the highway section in the following way along road, comprise
(1), when the public traffic in priority processing unit generates the pavement marker lamp and opens bright control strategy, pavement marker lamp system-wide Duan Qiliang forbids that public vehicles enter the batch (-type) public transportation lane;
(2), when the pavement marker lamp opens when bright, the public vehicles of not forcing to have travelled at the batch (-type) public transportation lane are converted into social lanes;
(3), after bus enters the batch (-type) public transportation lane, along with bus moves ahead, bus upstream pavement marker lamp extinguishes successively, allows public vehicles to enter;
(4), when pavement marker lamp system-wide section is extinguished, the batch (-type) public transportation lane on the main areas of highway section is all open to public vehicles, is equal to social track.
Wherein, the variable information plate is arranged on the canalization section of crossing, comprise two, near the starting point that is placed on crossing canalization section, be used for the prompting vehicle and when lane change, select corresponding track, one is placed near the intersection parking line, be used for to show whether entrance driveway is available to public vehicles, two blocks of variable information plates or column is placed on the road roadside or cantilevered is placed on the special-purpose entrance driveway of batch (-type) public transport top.
Claims (3)
1. batch (-type) public transportation lane control system is characterized in that: comprises,
1. vehicle detection unit, for detection of on the social track and the Real-time Traffic Information on the batch (-type) public transportation lane, described Real-time Traffic Information comprises public vehicles speed information and traffic flow information;
2. GPS bus location and detecting unit are used for the arrival of location and detection bus;
3. the outer equipment that shows comprises pavement marker lamp and variable information plate, is used for sign batch (-type) public transportation lane to the upstate of public vehicles;
4. the public traffic in priority processing unit is used for the testing result according to vehicle detection unit, GPS bus location and detecting unit, judges that comprehensively the back generates control strategy; Described control strategy comprises based on the control strategy of highway section main areas with based on the control strategy of crossing canalization section; Wherein said control strategy based on the highway section main areas specifically may further comprise the steps:
Step 101 detects the bus current position information, collects this upstream, highway section intersection signal timing scheme;
Step 102 is calculated the time T that bus sails the batch (-type) public transportation lane into by current location,
Wherein, l is that the bus current location is to the distance of the starting point in the highway section that the batch (-type) public transportation lane is set, v
BusBe the bus expectation operation speed of a motor vehicle,
Be the delay time at stop of bus in the crossing, upstream;
Step 103 according to the detected public vehicles speed information in vehicle detection unit, is calculated the highway section and is emptied time t
α,
Wherein, L is the road section length that the batch (-type) public transportation lane is set, and gets the distance between the canalization section of intersection exit road, upstream to crossing, downstream, v
CarBe the public vehicles speed of a motor vehicle;
Step 104 is as T≤t
αThe time, open bright pavement marker lamp and forbid that public vehicles enter public transportation lane;
Described control strategy based on crossing canalization section specifically may further comprise the steps:
Step 201 opens Δ t period before bright at a last red light, calculates when the batch (-type) public transportation lane is open to public vehicles in next signal period the queuing resolution time t of public vehicles
m=sr/ (s-q); Wherein, Δ t is the required reaction time of system-computed, and s is the saturation volume rate of crossing when the batch (-type) public transportation lane is open to public vehicles, and q is the mean value of crossing's public vehicles arrival rate, and r is signalized intersections red light duration;
Step 202 is calculated initial search radius R ', R '
d＜R '＜R
u', R ' wherein
u, R '
dBe respectively the bound of initial search radius, R
u'=(t
m+ Δ t) * v
Bus, R '
d=Δ t*v
BusV wherein
BusBe the bus expectation operation speed of a motor vehicle, t
mQueuing resolution time for public vehicles;
Step 203 detects the bus stop number i that exists in the initial search radius bound, j, i, j=0,1,2
Step 204 is determined search radius R, R
d＜R＜R
u, R
u=(t
m+ Δ t-i*t
s) * v
Bus, R
d=(Δ t-j*t
s) * v
Bus, t
sBe the assembly average of bus at the website berthing time;
Step 205 is calculated the distance L between current bus and the downstream intersection parking line;
Step 206 is as L ∈ { R|R
d＜R＜R
uThe time, at t
mOpen the batch (-type) public transportation lane in the+Δ t period, only allow public transit vehicle to enter this track; Otherwise, in the next cycle, allow public vehicles to enter the batch (-type) public transportation lane;
5. the public traffic in priority control module is used for according to the outer equipment that shows of the control strategy control of public traffic in priority processing unit;
6. communication unit be used for detected Real-time Traffic Information is transferred to the public traffic in priority processing unit, and the control strategy that the public traffic in priority processing unit is generated is transferred in the public traffic in priority control module.
2. according to the described a kind of batch (-type) public transportation lane control system of claim 1, it is characterized in that: described pavement marker lamp adopts light emitting diode, along road vertically with between the common social track of 5 meters be disposed on and the batch (-type) public transportation lane.
3. according to the described a kind of batch (-type) public transportation lane control system of claim 1, it is characterized in that: the quantity of described variable information plate is two, wherein near the starting point that is placed on crossing canalization section, be used for the prompting vehicle and when lane change, select corresponding track, another piece is placed near the intersection parking line, is used for showing whether entrance driveway is available to public vehicles.
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| CN 201110176930 CN102254443B (en) | 2011-06-28 | 2011-06-28 | Intermittent bus lane control system |
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|---|---|---|---|
| CN 201110176930 CN102254443B (en) | 2011-06-28 | 2011-06-28 | Intermittent bus lane control system |
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| CN102254443A CN102254443A (en) | 2011-11-23 |
| CN102254443B true CN102254443B (en) | 2013-08-07 |
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| CN 201110176930 Expired - Fee Related CN102254443B (en) | 2011-06-28 | 2011-06-28 | Intermittent bus lane control system |
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| Viegas José，Lu Baichuan.The intermittent bus lane signals setting within an area.《Transportation research》.Elsevier Ltd,2004,第12卷(第6期),全文. * |
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