CN107123266A - A kind of bottleneck road wagon flow amount adjustment method and device based on traffic big data - Google Patents
A kind of bottleneck road wagon flow amount adjustment method and device based on traffic big data Download PDFInfo
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- CN107123266A CN107123266A CN201710444860.8A CN201710444860A CN107123266A CN 107123266 A CN107123266 A CN 107123266A CN 201710444860 A CN201710444860 A CN 201710444860A CN 107123266 A CN107123266 A CN 107123266A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
- G08G1/0145—Measuring and analyzing of parameters relative to traffic conditions for specific applications for active traffic flow control
Abstract
The embodiment of the present invention provides a kind of bottleneck road wagon flow amount adjustment method and device based on traffic big data, obtain driving into flow, rolling flow and vehicle queue length away from for bottleneck road, then driving into flow, roll flow away from and vehicle queue length determines total regulated quantity of bottleneck road according to bottleneck road, and driving into flow, roll flow away from by total regulated quantity of bottleneck road and distribute to each regulation section according to bottleneck road.The residual capacity of regulated quantity and regulation section then according to regulation section determines the traffic phase parameter in regulation section, and the vehicle flowrate of bottleneck road is adjusted finally according to the traffic phase parameter in regulation section.In the embodiment of the present invention, make full use of the regulation section of bottleneck road upstream and downstream to evacuate vehicle flowrate, improve the efficiency of regulation bottleneck road vehicle flowrate.Residual capacity according further to regulation section gives regulation section distribution regulated quantity, and new traffic congestion point is produced during the vehicle flowrate of regulation bottleneck road so as to avoid.
Description
Technical field
The present embodiments relate to technical field of transportation, more particularly to a kind of bottleneck road wagon flow based on traffic big data
Amount adjustment method and device.
Background technology
With continuing to increase for urban inner vehicle guaranteeding organic quantity, counting also vehicle on the road increasingly in early evening peak road network
Greatly.In the hot spot areas of vehicle driving, often have part way and bottleneck occur, seriously hinder bottleneck road upstream and downstream
Going through ability, cause serious regional traffic congestion.It is related both at home and abroad to learn in order to solve section bottleneck blockage problem
Person has carried out substantial amounts of research, and major measure is exactly, when bottleneck is triggered in section, to block the major flow for driving into the bottleneck road,
The traffic pressure of bottleneck road is set to be eased.And this control mode and the current energy for underusing bottleneck road upstream and downstream
Power, therefore the effect of control is not obvious, does not account for the section bearing capacity of related crossing flow direction in control process in addition,
So as to often trigger other sections of periphery triggering bottleneck, new traffic congestion point is caused, normal traffic order is upset.
The content of the invention
The embodiment of the present invention provides a kind of bottleneck road wagon flow amount adjustment method and device based on traffic big data, is used for
Existing control method control effect is solved substantially and the problem of easily cause new traffic congestion point.
The embodiments of the invention provide a kind of bottleneck road wagon flow amount adjustment method based on traffic big data, including：
Obtain driving into flow, rolling flow and vehicle queue length away from for bottleneck road；
According to the bottleneck road drive into flow and roll away from flow difference and the vehicle queue length determine described in
Total regulated quantity of bottleneck road；
Driving into flow, roll flow away from and total regulated quantity of the bottleneck road determines each regulation according to the bottleneck road
The regulated quantity in section, the regulation section is directly or indirectly connected with the bottleneck road and vehicle flowrate meets and imposed a condition
Section；
The friendship in the regulation section is determined according to the residual capacity of the regulated quantity in the regulation section and the regulation section
Logical phase parameter, the residual capacity is determined by the queue length in the regulation section；
The vehicle flowrate of the bottleneck road is adjusted according to the traffic phase parameter in the regulation section.
Alternatively, the regulation section includes upstream regulation section and downstream regulation section；
It is described according to the bottleneck road drive into flow, roll flow away from and total regulated quantity of the bottleneck road determine it is each
The regulated quantity in section is adjusted, including：
Driving into flow, roll flow away from and total regulated quantity of the bottleneck road determines the bottle according to the bottleneck road
The upstream regulation amount and downstream regulated quantity in neck section；
Determine that the upstream is adjusted according to the vehicle flowrate of the upstream regulation amount of the bottleneck road and the upstream regulation section
Save the regulated quantity in section；
Determine that the downstream is adjusted according to the vehicle flowrate of the downstream regulated quantity of the bottleneck road and downstream regulation section
Save the regulated quantity in section.
Alternatively, the driving into flow, roll flow away from and total regulation of the bottleneck road according to the bottleneck road
Amount determines that the upstream regulation amount and downstream regulated quantity of the bottleneck road meet following formula (1) and formula (2)：
The formula (1) is：
Wherein, Δ QoutFor the downstream regulated quantity of bottleneck road, Δ Q is total regulated quantity of bottleneck road, QinFor bottleneck road
Drive into flow, QoutFlow is rolled away from for bottleneck road；
The formula (2) is：
Wherein, Δ QinFor the upstream regulation amount of bottleneck road, Δ Q is total regulated quantity of bottleneck road, QinFor bottleneck road
Drive into flow, QoutFlow is rolled away from for bottleneck road.
Alternatively, it is described that the tune is determined according to the regulated quantity in the regulation section and the residual capacity in the regulation section
The traffic phase parameter in section is saved, including：
According to the vehicle flowrate of the regulated quantity in the regulation section, the residual capacity in the regulation section and the regulation section
Determine the traffic phase adjusted amount in the regulation section；
The traffic phase parameter in the regulation section is determined according to the traffic phase adjusted amount.
Alternatively, under the queue length according to the regulation section determines that the residual capacity in the regulation section meets
State formula (3)：
The formula (3) is：
Wherein, Δ QmTo adjust the residual capacity in section, n is number of track-lines, LsTo adjust the critical queue length of section congestion,
LmTo adjust the queue length in section, l0Bicycle takes length during for bottleneck.
Correspondingly, the embodiment of the present invention additionally provides a kind of bottleneck road vehicle flowrate regulation dress based on traffic big data
Put, including：
Acquisition module, for obtaining driving into flow, rolling flow and vehicle queue length away from for bottleneck road；
Processing module, for driving into flow and roll the difference and the vehicle queue of flow away from according to the bottleneck road
Length determines total regulated quantity of the bottleneck road；Driving into flow, roll flow away from and the bottleneck according to the bottleneck road
Total regulated quantity in section determines the regulated quantity in each regulation section, and the regulation section is and the direct or indirect phase of the bottleneck road
Connect and vehicle flowrate meets the section imposed a condition；According to the regulated quantity in the regulation section and the residual capacity in the regulation section
The traffic phase parameter in the regulation section is determined, the residual capacity is determined by the queue length in the regulation section；
Adjustment module, the vehicle flowrate for adjusting the bottleneck road according to the traffic phase parameter in the regulation section.
Alternatively, the processing module specifically for：
The regulation section includes upstream regulation section and downstream regulation section；
Driving into flow, roll flow away from and total regulated quantity of the bottleneck road determines the bottle according to the bottleneck road
The upstream regulation amount and downstream regulated quantity in neck section；
Determine that the upstream is adjusted according to the vehicle flowrate of the upstream regulation amount of the bottleneck road and the upstream regulation section
Save the regulated quantity in section；
Determine that the downstream is adjusted according to the vehicle flowrate of the downstream regulated quantity of the bottleneck road and downstream regulation section
Save the regulated quantity in section.
Alternatively, the processing module specifically for：
The downstream regulated quantity of the bottleneck road is determined according to following formula (1)：
The formula (1) is：
Wherein, Δ QoutFor the downstream regulated quantity of bottleneck road, Δ Q is total regulated quantity of bottleneck road, QinFor bottleneck road
Drive into flow, QoutFlow is rolled away from for bottleneck road；
The upstream regulation amount of the bottleneck road is determined according to following formula (2)：
Wherein, Δ QinFor the upstream regulation amount of bottleneck road, Δ Q is total regulated quantity of bottleneck road, QinFor bottleneck road
Drive into flow, QoutFlow is rolled away from for bottleneck road.
Alternatively, the processing module specifically for：
According to the vehicle flowrate of the regulated quantity in the regulation section, the residual capacity in the regulation section and the regulation section
Determine the traffic phase adjusted amount in the regulation section；
The traffic phase parameter in the regulation section is determined according to the traffic phase adjusted amount.
Alternatively, the processing module specifically for：
The residual capacity in the regulation section is determined according to following formula (3)；
The formula (3) is：
Wherein, Δ QmTo adjust the residual capacity in section, n is number of track-lines, LsTo adjust the critical queue length of section congestion,
LmTo adjust the queue length in section, l0Bicycle takes length during for bottleneck.
The embodiment of the present invention shows, obtains driving into flow, rolling flow and vehicle queue length away from for bottleneck road.According to institute
State driving into flow and roll the difference and the vehicle queue length of flow away from and determining total tune of the bottleneck road for bottleneck road
Section amount, then driving into flow, roll flow away from and total regulated quantity of the bottleneck road determines each tune according to the bottleneck road
Save section regulated quantity, the regulation section for be directly or indirectly connected with the bottleneck road and vehicle flowrate satisfaction impose a condition
Section.The residual capacity of regulated quantity and the regulation section then according to the regulation section determines the regulation section
Traffic phase parameter, the residual capacity is determined by the queue length in the regulation section.Finally according to the regulation road
The traffic phase parameter of section adjusts the vehicle flowrate of the bottleneck road.In the embodiment of the present invention, make full use of straight with bottleneck road
Connect or be indirectly connected to and vehicle flowrate meets the section evacuation vehicle flowrate imposed a condition, improve the effect of regulation bottleneck road vehicle flowrate
Rate.Residual capacity according further to regulation section gives regulation section distribution regulated quantity, so as to avoid in regulation bottleneck road
New traffic congestion point is produced during vehicle flowrate.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, without having to pay creative labor, it can also be obtained according to these accompanying drawings
His accompanying drawing.
Fig. 1 is a kind of stream of the bottleneck road wagon flow amount adjustment method based on traffic big data provided in an embodiment of the present invention
Journey schematic diagram；
Fig. 2 is the schematic flow sheet of bottleneck road downstream regulation scheme formulating method provided in an embodiment of the present invention；
Fig. 3 is the schematic flow sheet of bottleneck road upstream regulation solution formulation method provided in an embodiment of the present invention；
Fig. 4 is another bottleneck road wagon flow amount adjustment method based on traffic big data provided in an embodiment of the present invention
Schematic flow sheet；
Fig. 5 is a kind of knot of the bottleneck road wagon flow quantity regulating device based on traffic big data provided in an embodiment of the present invention
Structure schematic diagram.
Embodiment
In order that the purpose of the present invention, technical scheme and beneficial effect are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only to explain this hair
It is bright, it is not intended to limit the present invention.
Fig. 1 illustrates a kind of bottleneck road vehicle flowrate based on traffic big data provided in an embodiment of the present invention and adjusted
The flow of section method, the flow can be performed by the bottleneck road wagon flow quantity regulating device based on traffic big data.
As shown in figure 1, the specific steps of the flow include：
Step S101, obtains driving into flow, rolling flow and vehicle queue length away from for bottleneck road.
Step S102, driving into flow and roll the difference and the vehicle queue length of flow away from according to the bottleneck road
Determine total regulated quantity of the bottleneck road.
Step S103, driving into flow, roll flow away from and total regulated quantity of the bottleneck road according to the bottleneck road
Determine the regulated quantity in each regulation section.
Step S104, the regulation is determined according to the residual capacity of the regulated quantity in the regulation section and the regulation section
The traffic phase parameter in section.
Step S105, the vehicle flowrate of the bottleneck road is adjusted according to the traffic phase parameter in the regulation section.
Specifically, in step S101, bottleneck road refers to unidirectional section, is that when getting congestion, queue length is close or waits
In the section of section total length, bottleneck road includes upstream crossing and downstream road junction, and the vehicle flowrate driven into from upstream crossing is bottle
Flow is driven into neck section, and the vehicle flowrate rolled away from from downstream road junction rolls flow away from for bottleneck road.Bottleneck road drives into stream
Measure, roll flow and vehicle queue length away from and can be obtained by the alert data of electricity or bayonet socket data.
In step s 102, bottleneck road drives into flow and rolls the difference of flow away from and meets following formula (4)：
ΔQ1=Qin-Qout…………………………………(4)
Wherein, Δ Q1Driving into flow and roll the difference of flow, Q away from for bottleneck roadinFlow is driven into for bottleneck road,
QoutFlow is rolled away from for bottleneck road.
Then the queue clearance amount of bottleneck road is determined according to the vehicle queue degree of bottleneck road, specifically meets following formula
(5), wherein queue clearance amount is that, when not considering that bottleneck road drives into flow and rolls flow away from, bottleneck road needs the car dissipated
Flow.
Wherein, Δ Q2For queue clearance amount, n is bottleneck road number of track-lines, and L is bottleneck road length, LideaTerminate for bottleneck
When the preferable queue length in section, l0Bicycle takes length during bottleneck.
In order to prevent bottleneck from frequently triggering, the preferable queue length L of bottleneck roadideaNeed to meet some requirements, i.e.,
The phenomenon that green light sky is put can not occur after bottleneck control terminates, and the length that dissipates is generally no greater than the 2/3 of road section length.For
Determination LideaSpecific value, the dissipation length for the downstream road junction a cycle being joined directly together with bottleneck road is calculated first,
Specifically meet following formula (6)：
Wherein, LgThe dissipation length for the downstream road junction a cycle being joined directly together for bottleneck road, C is crossing cycle, Qout
For the flow that rolls away from of bottleneck road, n is bottleneck road number of track-lines, l0Bicycle takes length during bottleneck, and Δ T is between the sampling time
Every.
Because dissipation length is generally no greater than the 2/3 of road section length, when what is obtained according to formula (6) calculating
When, Lidea=Lg, otherwise make
After the queue clearance amount for determining bottleneck road, driving into flow and roll the difference and bottle of flow away from according to bottleneck road
The queue clearance amount in neck section determines that total regulated quantity of bottleneck road meets following formula (7)：
Wherein, Δ Q is total regulated quantity of the bottleneck road in period T, and T is the preferable resolution time of bottleneck road, Δ
Q2For queue clearance amount, Δ Q1Driving into flow and roll the difference of flow away from for bottleneck road, Δ T is sampling time interval.It is specific real
Shi Zhong, the preferable resolution time T in neck section can be determined by following formula (8)：
Wherein, T is the preferable resolution time of bottleneck road, and N is adjustment factor, takes positive integer, such as N=3, Δ Q2For row
Team's dissipation amount, Δ T is sampling time interval, QoutFlow is rolled away from for bottleneck road.
In step s 103, regulation section is directly or indirectly connected with bottleneck road and vehicle flowrate meets and imposed a condition
Section.The upstream crossing of bottleneck road is such as set as A, downstream road junction is B, there is X1, X2 and X3 tri- upstream crossing A upstream
There are two crossings of X11 and X12 crossing, crossing X1 upstream, and there are tri- crossings of X4, X5 and X6 in downstream road junction B downstream, then X1 →
A, X2 → A, X3 → A, B → X4, B → X5, B → X6 are the section being joined directly together with bottleneck road, and X11 → X1, X12 → X1 are
The section being indirectly connected to bottleneck road, by counting the vehicle flowrate in each above-mentioned section, given threshold is met by vehicle flowrate
Section is defined as adjusting section.Determine behind all regulation sections, can be according to regulation section crossing corresponding with regulation section
Topological relation draw path profile, and determine according to path profile the control range of bottleneck road upstream and downstream.
In step S104, regulation section traffic phase parameter for regulation section upstream crossing or downstream road junction it is red
Green light phase time or split.The vehicle flowrate that the residual capacity in regulation section can also currently accommodate for regulation section, regulation
The residual capacity in section is determined by the queue length for adjusting section, specifically meets following formula (3)：
Wherein, Δ QmTo adjust the residual capacity in section, n is number of track-lines, LsTo adjust the critical queue length of section congestion,
LmTo adjust the queue length in section, l0Bicycle takes length during for bottleneck.Different road section lengths, regulation section congestion is critical
Queue length LsValue it is also different, table 1 illustrates the L under different sections of highway lengthsValue, as shown in table 1：
Table 1
In step S105, after the traffic phase parameter adjustment in regulation section, the vehicle flowrate in corresponding regulation section can be sent out
Raw to change, such as the red time in the regulation section of bottleneck road upstream can extend, so that the vehicle flowrate into bottleneck road subtracts
Few, the green time in the regulation section in bottleneck road downstream can extend, so that the vehicle flowrate for leaving bottleneck road increases, so that real
The evacuation of existing bottleneck road wagon flow.
The embodiment of the present invention shows, obtains driving into flow, rolling flow and vehicle queue length away from for bottleneck road.According to institute
State driving into flow and roll the difference and the vehicle queue length of flow away from and determining total tune of the bottleneck road for bottleneck road
Section amount, then driving into flow, roll flow away from and total regulated quantity of the bottleneck road determines each tune according to the bottleneck road
Save section regulated quantity, the regulation section for be directly or indirectly connected with the bottleneck road and vehicle flowrate satisfaction impose a condition
Section.The residual capacity of regulated quantity and the regulation section then according to the regulation section determines the regulation section
Traffic phase parameter, the residual capacity is determined by the queue length in the regulation section.Finally according to the regulation road
The traffic phase parameter of section adjusts the vehicle flowrate of the bottleneck road.In the embodiment of the present invention, make full use of straight with bottleneck road
Connect or be indirectly connected to and vehicle flowrate meets the section evacuation vehicle flowrate imposed a condition, improve the effect of regulation bottleneck road vehicle flowrate
Rate.Residual capacity according further to regulation section gives regulation section distribution regulated quantity, so as to avoid in regulation bottleneck road
New traffic congestion point is produced during vehicle flowrate.
The formulation process of bottleneck road vehicle flowrate regulation scheme is introduced with reference to specific embodiment.Bottleneck road vehicle flowrate
Regulation scheme includes upstream regulation scheme and downstream regulation scheme, and the regulation section for adjusting bottleneck road vehicle flowrate includes
Trip regulation section and downstream regulation section.
Driving into flow, roll flow away from by total regulated quantity of bottleneck road and be divided into upstream regulation amount according to bottleneck road first
With downstream regulated quantity, specifically meet following formula (1) and formula (2)：
The formula (1) is：
Wherein, Δ QoutFor the downstream regulated quantity of bottleneck road, Δ Q is total regulated quantity of bottleneck road, QinFor bottleneck road
Drive into flow, QoutFlow is rolled away from for bottleneck road；
The formula (2) is：
Wherein, Δ QinFor the upstream regulation amount of bottleneck road, Δ Q is total regulated quantity of bottleneck road, QinFor bottleneck road
Drive into flow, QoutFlow is rolled away from for bottleneck road.
Then the downstream regulated quantity further according to bottleneck road formulates downstream regulation scheme, and upstream is formulated according to upstream regulation amount
Regulation scheme.
Lower mask body introduces the formulation process of bottleneck road downstream regulation scheme and bottleneck road upstream regulation scheme.
The formulation process of bottleneck road downstream regulation scheme is introduced first, is comprised the following steps, as shown in Figure 2：
Step S201, downstream regulation road is determined according to the vehicle flowrate that the downstream regulated quantity of bottleneck road and downstream adjust section
The regulated quantity of section.
Step S202, residual capacity and downstream regulation road that the regulated quantity in section, downstream adjust section are adjusted according to downstream
The vehicle flowrate of section determines that downstream adjusts the traffic phase adjusted amount in section.
Step S203, the traffic phase adjusted amount for adjusting section according to downstream determines that the traffic phase in downstream regulation section is joined
Number.
Step S204, the traffic phase parameter for adjusting section according to downstream adjusts the vehicle flowrate of bottleneck road.
Specifically, in step s 201, the downstream regulation section of bottleneck road can be classified, such as with bottleneck road
The regulation section that downstream road junction is joined directly together is that downstream one-level adjusts section, and the regulation that section is joined directly together is adjusted with downstream one-level
Section is downstream second grade highway section, the like until determining that all downstreams adjust the rank in sections.Determine that downstream adjusts section
Rank after, the vehicle flowrate for adjusting section according to the downstream regulated quantity of bottleneck road and downstream determines that downstream adjusts the regulation in section
Amount, is illustrated, specific coincidence formula (9) with downstream one-level regulation section：
Wherein, QiSection i regulated quantity, q are adjusted for downstream one-leveliSection i vehicle flowrate, Δ Q are adjusted for downstream one-levelout
For the downstream regulated quantity of bottleneck road.Determine the method and above method phase of the regulated quantity in the downstream regulation section of other ranks
Together, here is omitted.
In step S202, traffic phase adjusted amount can be regulated quantity or phase-compression ratio of split etc..
The vehicle flowrate that the regulated quantity and downstream one-level for adjusting section according to downstream one-level first adjust section determines that downstream one-level adjusts road
The split regulated quantity of section, specific coincidence formula (10)：
In above formula, Δ giSection i split regulated quantity, Q are adjusted for downstream one-leveliSection i tune is adjusted for downstream one-level
Section amount, giSection i former split is adjusted for downstream one-level, Δ T is sampling time interval, qiAdjust section i's for downstream one-level
Vehicle flowrate, T is the preferable resolution time of bottleneck road.
Then the vehicle flowrate that the residual capacity and downstream one-level for adjusting section according to downstream one-level adjust section determines downstream
One-level adjusts the maximum split regulated quantity in section, specific coincidence formula (11)：
Wherein, Δ gimaxSection i maximum split regulated quantity, g are adjusted for downstream one-leveliRoad is adjusted for downstream one-level
Section i former split, Δ QmiSection i residual capacity is adjusted for downstream one-level, Δ T is sampling time interval, qiFor downstream one
Level regulation section i vehicle flowrate, T is the preferable resolution time of bottleneck road.
When downstream one-level adjusts section i split regulated quantity Δ giMore than corresponding maximum split regulated quantity Δ
gimaxWhen, illustrate that the regulated quantity for now distributing to downstream one-level regulation section i is more than the remaining appearance that downstream one-level adjusts section i
Amount is, it is necessary to which the split regulated quantity that downstream one-level is adjusted into section i is adjusted to Δ gimax, while correspondence adjustment downstream one-level regulation
Section i regulated quantity.The regulated quantity that downstream one-level is adjusted in the i of section more than residual capacity distributes to two grades of downstream regulation road
Section, distribution method is identical with the distribution method that downstream one-level adjusts section, and here is omitted.By that analogy, until according to upper
Method is stated downstream regulated quantity is fully allocated into downstream regulation section and determines that downstream adjusts the split regulated quantity in section.
In step S203 and step S204, the split regulated quantity for adjusting section according to downstream determines that downstream adjusts section
Traffic phase parameter, and according to downstream adjust section traffic phase parameter adjust bottleneck road vehicle flowrate.It is of the invention real
Apply in example, when congestion occurs in bottleneck road, adjust the vehicle flowrate in section according to downstream and downstream adjusts the remaining of section and held
Reasonable distribution regulated quantity is measured, the vehicle flowrate that bottleneck road is evacuated in downstream regulation section had both been taken full advantage of, and turn avoid generation new
Congestion points.
Due in the control range of downstream, in addition to the regulation section of downstream, also non-regulated section, in the regulation of adjustment downstream
While the traffic phase parameter in section, inevitably need to be adjusted the traffic phase parameter in non-regulated section, this
The traffic phase parameter in non-regulated section is adjusted using following methods in inventive embodiments：Setting downstream regulation section is entered
The corresponding phase of passage in mouth direction is regulation phase, and the phase in passive increased non-regulated section, which is called, passively adjusts phase.
After the split increase of phase is adjusted, if the timing scheme middle ring figure after adjustment is alignment, now other phases
Time need not be adjusted, if new departure middle ring figure does not align, the remaining time is allocated.Specific distribution method is such as
Under：If there is regulation phase in semi-ring, judge to distribute to remaining time into the requirement for whether meeting residual capacity after regulation phase, if
It is unsatisfactory for, then the regulating time for adjusting phase takes Δ gi,max, remaining time is according to the pro rate of former split to other phases；
It will be fully allocated to remaining time adjust phase if meeting；If without regulation phase in semi-ring, according to the ratio of former split
Example distributes to other phases.
It is several below occurring, it is necessary to be tested to regulation scheme after the regulation scheme in bottleneck road downstream is determined
It can not implement regulation scheme in the case of kind：
Have there is the situation of queuing congestion in situation one, downstream regulation section.
Situation two, the queue length to non-regulated section after implementation regulation scheme T time section are estimated, when estimation is obtained
The queue length in non-regulated section when being more than the critical queue length of section congestion, illustrate that the regulation scheme can cause non-regulated road
The congestion of section.
By being tested to downstream regulation scheme, influence of the regulation scheme to non-regulated section has been estimated in advance, effectively
Avoid after regulation scheme is implemented and new congestion is caused in non-regulated section.
The formulation process of bottleneck road upstream regulation scheme is described below, comprises the following steps, as shown in Figure 3：
Step S301, upstream regulation road is determined according to the vehicle flowrate of the upstream regulation amount of bottleneck road and upstream regulation section
The regulated quantity of section.
Step S302, according to the regulated quantity in upstream regulation section, the residual capacity in upstream regulation section and upstream regulation road
The vehicle flowrate of section determines the phase-compression ratio in upstream regulation section.
Step S303, the traffic phase parameter according to the phase-compression in upstream regulation section than determining upstream regulation section.
Step S304, the vehicle flowrate of bottleneck road is adjusted according to the traffic phase parameter in upstream regulation section.
Specifically, in step S301, the upstream regulation section of bottleneck road is subjected to classification and determines the regulation of upstream one-level
Section, upstream secondary regulation section etc., specific stage division is identical with the stage division that downstream adjusts section, no longer goes to live in the household of one's in-laws on getting married herein
State.It is true according to the vehicle flowrate of the upstream regulation amount of bottleneck road and upstream regulation section after the rank for determining upstream regulation section
Determine the regulated quantity in upstream regulation section, illustrated by taking upstream one-level regulation section as an example, it is specific such as formula (12)：
Wherein, QjSection j regulated quantity, q are adjusted for upstream one-leveljSection j vehicle flowrate, Δ Q are adjusted for upstream one-levelin
For the upstream regulation amount of bottleneck road.It should be noted that being allocated in advance when the downstream regulation section of bottleneck road can not be adjusted
Bottleneck road downstream regulated quantity when, downstream can be adjusted the vehicle flowrate that can not adjust of section and pre-assigned upstream regulation
Sum is measured as the actual upstream regulation amount of bottleneck road.Determine the upstream regulation section of other ranks regulated quantity method with
The above method is identical, and here is omitted.
In step s 302, first determine whether whether upstream one-level regulation section j regulated quantity is more than upstream one-level and adjusts road
Section j residual capacity, if being more than, adjustment upstream one-level adjusts section j regulated quantity, and unnecessary regulated quantity is distributed into upstream
Two grades of regulation sections, distribution method is identical with the distribution method that upstream one-level adjusts section, and here is omitted, the like,
Until it is determined that the regulated quantity in all upstream regulation sections of bottleneck road.Then adjusted according to the regulated quantity in upstream regulation section and upstream
The vehicle flowrate in section section determines that upstream one-level adjusts the phase-compression ratio in section, is said by taking upstream one-level regulation section as an example
It is bright, specific coincidence formula (13)：
Wherein, Δ λjSection j phase-compression ratio, Q are adjusted for upstream one-leveljSection j regulation is adjusted for upstream one-level
Amount, qjSection j vehicle flowrate is adjusted for upstream one-level, Δ T is sampling time interval, and T is the preferable resolution time of bottleneck road.
The phase-compression in the regulation section of other ranks of bottleneck road upstream adjusts the phase pressure in section than computational methods and upstream one-level
Scaling calculation method is identical, and here is omitted.
Total vehicle flowrate it can in addition contain the upstream regulation amount according to bottleneck road and upstream one-level regulation section is determined
Swim the phase-compression ratio that one-level adjusts section, specific coincidence formula (14)：
Wherein, Δ λinUpstream one-level adjusts the phase-compression ratio in section, Δ QinFor the upstream regulation amount of bottleneck road, qjFor
Upstream one-level adjusts section j vehicle flowrate, and Δ T is sampling time interval, and T is the preferable resolution time of bottleneck road.It is now each
The phase-compression in individual upstream one-level regulation section is than identical.It should be noted that the regulation road of other ranks of bottleneck road upstream
The phase-compression of section is more identical than computational methods with the upstream one-level phase-compression for adjusting section than computational methods, no longer goes to live in the household of one's in-laws on getting married herein
State.
In step S303 and step S304, according to the phase-compression in upstream regulation section than compression upstream regulation section phase
The green time of position, it is red light that the remaining time after compression, which is all mended, and according to the phase adjusted bottleneck road after adjustment
Vehicle flowrate.By the traffic phase parameter in the upstream regulation section for adjusting bottleneck road, the wagon flow into bottleneck road is controlled
Amount, effectively alleviates the congestion of bottleneck road, the residual capacity according further to upstream regulation section determines upstream regulation section
Regulated quantity, has taken into full account the regulating power in upstream regulation section, and new congestion points are produced so as to avoid.
In order to preferably explain the embodiment of the present invention, describe the embodiment of the present invention below by specific implement scene and provide
The bottleneck road wagon flow amount adjustment method based on traffic big data flow.
As shown in figure 4, this method comprises the following steps：
Step S401, obtains driving into flow, rolling flow and vehicle queue length away from for bottleneck road.
Step S402, driving into flow and rolling the difference and vehicle queue length of flow away from and determine bottleneck according to bottleneck road
Total regulated quantity in section.
Step S403, driving into flow, roll flow away from and total regulated quantity of bottleneck road determines bottleneck according to bottleneck road
The upstream regulation amount and downstream regulated quantity in section.
Step S404, adjusts the vehicle flowrate in section, downstream according to the downstream regulated quantity of bottleneck road, downstream and adjusts section
Residual capacity formulates bottleneck road downstream regulation scheme.
Whether step S405, examine bottleneck road downstream regulation scheme qualified, if then performing step S406, otherwise perform
Step S407.
Step S406, issues bottleneck road downstream regulation scheme.
Step S407, cancels and issues the regulation scheme that underproof downstream adjusts section, issue qualified downstream regulation road
The regulation scheme of section.
Step S408, according to the upstream regulation amount of bottleneck road, the vehicle flowrate in upstream regulation section, upstream regulation section
The downstream regulated quantity that residual capacity and downstream regulation section can not be adjusted formulates bottleneck road upstream regulation scheme.
Step S409, issues bottleneck road upstream regulation scheme.
The embodiment of the present invention shows, obtains driving into flow, rolling flow and vehicle queue length away from for bottleneck road.According to institute
State driving into flow and roll the difference and the vehicle queue length of flow away from and determining total tune of the bottleneck road for bottleneck road
Section amount, then driving into flow, roll flow away from and total regulated quantity of the bottleneck road determines each tune according to the bottleneck road
Save section regulated quantity, the regulation section for be directly or indirectly connected with the bottleneck road and vehicle flowrate satisfaction impose a condition
Section.The residual capacity of regulated quantity and the regulation section then according to the regulation section determines the regulation section
Traffic phase parameter, the residual capacity is determined by the queue length in the regulation section.Finally according to the regulation road
The traffic phase parameter of section adjusts the vehicle flowrate of the bottleneck road.In the embodiment of the present invention, make full use of straight with bottleneck road
Connect or be indirectly connected to and vehicle flowrate meets the section evacuation vehicle flowrate imposed a condition, improve the effect of regulation bottleneck road vehicle flowrate
Rate.Residual capacity according further to regulation section gives regulation section distribution regulated quantity, so as to avoid in regulation bottleneck road
New traffic congestion point is produced during vehicle flowrate.
Based on same idea, Fig. 5 it is exemplary show it is provided in an embodiment of the present invention a kind of based on traffic big data
The structure of bottleneck road wagon flow quantity regulating device, the device can perform the bottleneck road vehicle flowrate regulation based on traffic big data
The flow of method.
As shown in figure 5, the device includes：
Acquisition module 501, for obtaining driving into flow, rolling flow and vehicle queue length away from for bottleneck road；
Processing module 502, for driving into flow and roll the difference and the vehicle of flow away from according to the bottleneck road
Queue length determines total regulated quantity of the bottleneck road；Driving into flow, roll flow away from and described according to the bottleneck road
Total regulated quantity of bottleneck road determines the regulated quantity in each regulation section, the regulation section be with the bottleneck road directly or
Connect connected and vehicle flowrate and meet the section imposed a condition；According to the regulated quantity in the regulation section and the residue in the regulation section
Capacity determines the traffic phase parameter in the regulation section, and the residual capacity is determined by the queue length in the regulation section
's；
Adjustment module 503, the wagon flow for adjusting the bottleneck road according to the traffic phase parameter in the regulation section
Amount.
Alternatively, the processing module 502 specifically for：
The regulation section includes upstream regulation section and downstream regulation section；
Driving into flow, roll flow away from and total regulated quantity of the bottleneck road determines the bottle according to the bottleneck road
The upstream regulation amount and downstream regulated quantity in neck section；
Determine that the upstream is adjusted according to the vehicle flowrate of the upstream regulation amount of the bottleneck road and the upstream regulation section
Save the regulated quantity in section；
Determine that the downstream is adjusted according to the vehicle flowrate of the downstream regulated quantity of the bottleneck road and downstream regulation section
Save the regulated quantity in section.
Alternatively, the processing module 502 specifically for：
The downstream regulated quantity of the bottleneck road is determined according to following formula (1)：
The formula (1) is：
Wherein, Δ QoutFor the downstream regulated quantity of bottleneck road, Δ Q is total regulated quantity of bottleneck road, QinFor bottleneck road
Drive into flow, QoutFlow is rolled away from for bottleneck road；
The upstream regulation amount of the bottleneck road is determined according to following formula (2)：
Wherein, Δ QinFor the upstream regulation amount of bottleneck road, Δ Q is total regulated quantity of bottleneck road, QinFor bottleneck road
Drive into flow, QoutFlow is rolled away from for bottleneck road.
Alternatively, the processing module 502 specifically for：
According to the vehicle flowrate of the regulated quantity in the regulation section, the residual capacity in the regulation section and the regulation section
Determine the traffic phase adjusted amount in the regulation section；
The traffic phase parameter in the regulation section is determined according to the traffic phase adjusted amount.
Alternatively, the processing module 502 specifically for：
The residual capacity in the regulation section is determined according to following formula (3)；
The formula (3) is：
Wherein, Δ QmTo adjust the residual capacity in section, n is number of track-lines, LsTo adjust the critical queue length of section congestion,
LmTo adjust the queue length in section, l0Bicycle takes length during for bottleneck.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method or computer program product.
Therefore, the present invention can be using the embodiment in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Form.Deposited moreover, the present invention can use to can use in one or more computers for wherein including computer usable program code
The shape for the computer program product that storage media is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
Formula.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram are described.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which is produced, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (10)
1. a kind of bottleneck road wagon flow amount adjustment method based on traffic big data, it is characterised in that including：
Obtain driving into flow, rolling flow and vehicle queue length away from for bottleneck road；
Driving into flow and rolling the difference and the vehicle queue length of flow away from and determine the bottleneck according to the bottleneck road
Total regulated quantity in section；
Driving into flow, roll flow away from and total regulated quantity of the bottleneck road determines each regulation section according to the bottleneck road
Regulated quantity, the regulation section is directly or indirectly to be connected with the bottleneck road and the road that imposes a condition of vehicle flowrate satisfaction
Section；
The traffic phase in the regulation section is determined according to the residual capacity of the regulated quantity in the regulation section and the regulation section
Position parameter, the residual capacity is determined by the queue length in the regulation section；
The vehicle flowrate of the bottleneck road is adjusted according to the traffic phase parameter in the regulation section.
2. the method as described in claim 1, the regulation section includes upstream regulation section and downstream regulation section；
The driving into flow, roll flow away from and total regulated quantity of the bottleneck road determines each regulation according to the bottleneck road
The regulated quantity in section, including：
Driving into flow, roll flow away from and total regulated quantity of the bottleneck road determines the bottleneck road according to the bottleneck road
The upstream regulation amount and downstream regulated quantity of section；
The upstream regulation road is determined according to the vehicle flowrate of the upstream regulation amount of the bottleneck road and the upstream regulation section
The regulated quantity of section；
The downstream regulation road is determined according to the vehicle flowrate of the downstream regulated quantity of the bottleneck road and downstream regulation section
The regulated quantity of section.
3. method as claimed in claim 2, it is characterised in that the driving into flow, roll stream away from according to the bottleneck road
Amount and total regulated quantity of the bottleneck road determine that the upstream regulation amount and downstream regulated quantity of the bottleneck road meet following public affairs
Formula (1) and formula (2)：
The formula (1) is：
<mrow>
<msub>
<mi>&Delta;Q</mi>
<mrow>
<mi>o</mi>
<mi>u</mi>
<mi>t</mi>
</mrow>
</msub>
<mo>=</mo>
<mi>&Delta;</mi>
<mi>Q</mi>
<mo>&CenterDot;</mo>
<mi>m</mi>
<mi>i</mi>
<mi>n</mi>
<mrow>
<mo>(</mo>
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
<mo>,</mo>
<mfrac>
<msub>
<mi>Q</mi>
<mrow>
<mi>o</mi>
<mi>u</mi>
<mi>t</mi>
</mrow>
</msub>
<mrow>
<msub>
<mi>Q</mi>
<mrow>
<mi>i</mi>
<mi>n</mi>
</mrow>
</msub>
<mo>+</mo>
<msub>
<mi>Q</mi>
<mrow>
<mi>o</mi>
<mi>u</mi>
<mi>t</mi>
</mrow>
</msub>
</mrow>
</mfrac>
<mo>)</mo>
</mrow>
<mo>...</mo>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>)</mo>
</mrow>
</mrow>
Wherein, Δ QoutFor the downstream regulated quantity of bottleneck road, Δ Q is total regulated quantity of bottleneck road, QinFor sailing for bottleneck road
Inbound traffics, QoutFlow is rolled away from for bottleneck road；
The formula (2) is：
<mrow>
<msub>
<mi>&Delta;Q</mi>
<mrow>
<mi>i</mi>
<mi>n</mi>
</mrow>
</msub>
<mo>=</mo>
<mi>&Delta;</mi>
<mi>Q</mi>
<mo>&CenterDot;</mo>
<mi>m</mi>
<mi>a</mi>
<mi>x</mi>
<mrow>
<mo>(</mo>
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
<mo>,</mo>
<mfrac>
<msub>
<mi>Q</mi>
<mrow>
<mi>i</mi>
<mi>n</mi>
</mrow>
</msub>
<mrow>
<msub>
<mi>Q</mi>
<mrow>
<mi>i</mi>
<mi>n</mi>
</mrow>
</msub>
<mo>+</mo>
<msub>
<mi>Q</mi>
<mrow>
<mi>o</mi>
<mi>u</mi>
<mi>t</mi>
</mrow>
</msub>
</mrow>
</mfrac>
<mo>)</mo>
</mrow>
<mo>...</mo>
<mrow>
<mo>(</mo>
<mn>2</mn>
<mo>)</mo>
</mrow>
</mrow>
Wherein, Δ QinFor the upstream regulation amount of bottleneck road, Δ Q is total regulated quantity of bottleneck road, QinFor sailing for bottleneck road
Inbound traffics, QoutFlow is rolled away from for bottleneck road.
4. the method as described in claim 1, it is characterised in that the regulated quantity according to the regulation section and the regulation
The residual capacity in section determines the traffic phase parameter in the regulation section, including：
Determined according to the vehicle flowrate of the regulated quantity in the regulation section, the residual capacity in the regulation section and the regulation section
The traffic phase adjusted amount in the regulation section；
The traffic phase parameter in the regulation section is determined according to the traffic phase adjusted amount.
5. the method as described in claim 1, it is characterised in that described according to being determined the queue length in the regulation section
The residual capacity in regulation section meets following formula (3)：
The formula (3) is：
<mrow>
<msub>
<mi>&Delta;Q</mi>
<mi>m</mi>
</msub>
<mo>=</mo>
<mfenced open = "{" close = "">
<mtable>
<mtr>
<mtd>
<mrow>
<mi>n</mi>
<mo>&CenterDot;</mo>
<mfrac>
<mrow>
<msub>
<mi>L</mi>
<mi>s</mi>
</msub>
<mo>-</mo>
<msub>
<mi>L</mi>
<mi>m</mi>
</msub>
</mrow>
<msub>
<mi>l</mi>
<mn>0</mn>
</msub>
</mfrac>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>0</mn>
</mtd>
</mtr>
</mtable>
</mfenced>
<mo>...</mo>
<mrow>
<mo>(</mo>
<mn>3</mn>
<mo>)</mo>
</mrow>
</mrow>
Wherein, Δ QmTo adjust the residual capacity in section, n is number of track-lines, LsFor the regulation critical queue length of section congestion, LmFor
Adjust the queue length in section, l0Bicycle takes length during for bottleneck.
6. a kind of bottleneck road wagon flow quantity regulating device based on traffic big data, it is characterised in that including：
Acquisition module, for obtaining driving into flow, rolling flow and vehicle queue length away from for bottleneck road；
Processing module, for driving into flow and roll the difference and the vehicle queue length of flow away from according to the bottleneck road
Determine total regulated quantity of the bottleneck road；Driving into flow, roll flow away from and the bottleneck road according to the bottleneck road
Total regulated quantity determine the regulated quantity in each regulation section, the regulation section to be directly or indirectly connected with the bottleneck road and
Vehicle flowrate meets the section imposed a condition；Determined according to the regulated quantity in the regulation section and the residual capacity in the regulation section
The traffic phase parameter in the regulation section, the residual capacity is determined by the queue length in the regulation section；
Adjustment module, the vehicle flowrate for adjusting the bottleneck road according to the traffic phase parameter in the regulation section.
7. device as claimed in claim 6, the processing module specifically for：
The regulation section includes upstream regulation section and downstream regulation section；
Driving into flow, roll flow away from and total regulated quantity of the bottleneck road determines the bottleneck road according to the bottleneck road
The upstream regulation amount and downstream regulated quantity of section；
The upstream regulation road is determined according to the vehicle flowrate of the upstream regulation amount of the bottleneck road and the upstream regulation section
The regulated quantity of section；
The downstream regulation road is determined according to the vehicle flowrate of the downstream regulated quantity of the bottleneck road and downstream regulation section
The regulated quantity of section.
8. device as claimed in claim 7, it is characterised in that the processing module specifically for：
The downstream regulated quantity of the bottleneck road is determined according to following formula (1)：
The formula (1) is：
<mrow>
<msub>
<mi>&Delta;Q</mi>
<mrow>
<mi>o</mi>
<mi>u</mi>
<mi>t</mi>
</mrow>
</msub>
<mo>=</mo>
<mi>&Delta;</mi>
<mi>Q</mi>
<mo>&CenterDot;</mo>
<mi>m</mi>
<mi>i</mi>
<mi>n</mi>
<mrow>
<mo>(</mo>
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
<mo>,</mo>
<mfrac>
<msub>
<mi>Q</mi>
<mrow>
<mi>o</mi>
<mi>u</mi>
<mi>t</mi>
</mrow>
</msub>
<mrow>
<msub>
<mi>Q</mi>
<mrow>
<mi>i</mi>
<mi>n</mi>
</mrow>
</msub>
<mo>+</mo>
<msub>
<mi>Q</mi>
<mrow>
<mi>o</mi>
<mi>u</mi>
<mi>t</mi>
</mrow>
</msub>
</mrow>
</mfrac>
<mo>)</mo>
</mrow>
<mo>...</mo>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>)</mo>
</mrow>
</mrow>
Wherein, Δ QoutFor the downstream regulated quantity of bottleneck road, Δ Q is total regulated quantity of bottleneck road, QinFor sailing for bottleneck road
Inbound traffics, QoutFlow is rolled away from for bottleneck road；
The upstream regulation amount of the bottleneck road is determined according to following formula (2)：
<mrow>
<msub>
<mi>&Delta;Q</mi>
<mrow>
<mi>i</mi>
<mi>n</mi>
</mrow>
</msub>
<mo>=</mo>
<mi>&Delta;</mi>
<mi>Q</mi>
<mo>&CenterDot;</mo>
<mi>m</mi>
<mi>a</mi>
<mi>x</mi>
<mrow>
<mo>(</mo>
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
<mo>,</mo>
<mfrac>
<msub>
<mi>Q</mi>
<mrow>
<mi>i</mi>
<mi>n</mi>
</mrow>
</msub>
<mrow>
<msub>
<mi>Q</mi>
<mrow>
<mi>i</mi>
<mi>n</mi>
</mrow>
</msub>
<mo>+</mo>
<msub>
<mi>Q</mi>
<mrow>
<mi>o</mi>
<mi>u</mi>
<mi>t</mi>
</mrow>
</msub>
</mrow>
</mfrac>
<mo>)</mo>
</mrow>
<mo>...</mo>
<mrow>
<mo>(</mo>
<mn>2</mn>
<mo>)</mo>
</mrow>
</mrow>
Wherein, Δ QinFor the upstream regulation amount of bottleneck road, Δ Q is total regulated quantity of bottleneck road, QinFor sailing for bottleneck road
Inbound traffics, QoutFlow is rolled away from for bottleneck road.
9. device as claimed in claim 6, it is characterised in that the processing module specifically for：
Determined according to the vehicle flowrate of the regulated quantity in the regulation section, the residual capacity in the regulation section and the regulation section
The traffic phase adjusted amount in the regulation section；
The traffic phase parameter in the regulation section is determined according to the traffic phase adjusted amount.
10. device as claimed in claim 6, it is characterised in that the processing module specifically for：
The residual capacity in the regulation section is determined according to following formula (3)；
The formula (3) is：
<mrow>
<msub>
<mi>&Delta;Q</mi>
<mi>m</mi>
</msub>
<mo>=</mo>
<mfenced open = "{" close = "">
<mtable>
<mtr>
<mtd>
<mrow>
<mi>n</mi>
<mo>&CenterDot;</mo>
<mfrac>
<mrow>
<msub>
<mi>L</mi>
<mi>s</mi>
</msub>
<mo>-</mo>
<msub>
<mi>L</mi>
<mi>m</mi>
</msub>
</mrow>
<msub>
<mi>l</mi>
<mn>0</mn>
</msub>
</mfrac>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>0</mn>
</mtd>
</mtr>
</mtable>
</mfenced>
<mo>...</mo>
<mrow>
<mo>(</mo>
<mn>3</mn>
<mo>)</mo>
</mrow>
</mrow>
Wherein, Δ QmTo adjust the residual capacity in section, n is number of track-lines, LsFor the regulation critical queue length of section congestion, LmFor
Adjust the queue length in section, l0Bicycle takes length during for bottleneck.
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| CN107895481A (en) * | 2017-11-21 | 2018-04-10 | 福建工程学院 | Area road wagon flow amount control method based on floating car technology |
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