CN106935044A - A kind of site location optimization method for preferentially coordinating control based on bus signals - Google Patents
A kind of site location optimization method for preferentially coordinating control based on bus signals Download PDFInfo
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/087—Override of traffic control, e.g. by signal transmitted by an emergency vehicle
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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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
- G08G1/0125—Traffic data processing
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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
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/081—Plural intersections under common control
Abstract
The invention discloses a kind of site location optimization method for preferentially coordinating control based on bus signals, with public transport operation efficiency optimization as target, first, backbone intersection is grouped by node of bus station, green ripple between setting bus station in the group of intersection, carries out bus trunk line vehicle and coordinates control.Then, judge whether to start bus signals preference strategy according to the public transit vehicle arrival stop line time.Then, when analysis implementation bus signals are preferential, influence of the diverse location bus stop to public transport operation efficiency.Finally, according to analysis result, the prioritization scheme of the bus station position under different road conditions is proposed, coordinates control implementation result to lift public traffic in priority, and then improve public transport operation efficiency and service level.
Description
Technical field
The invention belongs to urban public transport facilities planning and management domain, it is related to bus stop position optimization technology,
It particularly relates to a kind of site location optimization method for preferentially coordinating control based on bus signals.
Background technology
Used as most basic city bus facility, bus stop is the contact knob for contacting passenger and public transportation service
Band, is that public transit system realizes its indispensable important step of service.Current China big city possesses tens to hundreds of public affairs
Intersection road, by every average 20 website of circuit, repeat factor 2.5 is calculated, each city also at least thousands of bus stations.
Therefore, the reasonability of city bus bus stop layout designs has to urban transportation overall operation situation and urban construction and extremely weighs
The influence wanted.But, the planning and designing of China's city upblic traffic station are perfect not enough in practice, and bus stop construction is also deposited
In problems, such as stop spacing design is unreasonable, and nearby bus parking station location selects unreasonable, bus stop type selecting for intersection
It is unreasonable etc., so as to cause public transit vehicle to be interfered seriously with other vehicles at website, public transit vehicle delay increase, road
The problems such as traffic capacity declines.The reason for causing these phenomenons be it is many, can by website optimization design, strengthen website and
The harmony of public bus network, so as to ensure the quick and smooth operation of public transport.
Bus stop carries collecting and distributing function as the subsystem of bus-transit system, is taken with public transport
The speed of business, convenient degree and comfort level suffer from huge relation.The setting form of bus station and position not only have influence on public affairs
The operational efficiency of friendship itself, also has influence on other running state of the vehicle and road passage capability.However, at present on bus station
The research of optimization is focused mostly in traffic programme aspect, and shortage is ground from traffic control and management aspect to bus stop optimization
Study carefully.The design of bus stop considers from static state mostly, and does not consider its influence to bus running efficiency.
At present, many experts and scholars propose preferentially to lift public transit vehicle operational efficiency using bus signals.But, research
Show, stop of the public transit vehicle at bus stop largely have impact on the preferential effect of bus signals.Therefore, it is necessary to visit
Beg on the premise of public traffic in priority strategy is taken, bus parking station location is how to influence public transport operation, and then explore different
In the case of optimal bus station position, so as to lift public traffic in priority effect, reduce public transit vehicle delay, improve public transit vehicle clothes
Business quality.
The content of the invention
Technical problem：The present invention provides a kind of implementation effect that ensure that bus signals are preferential, improves public transit vehicle
Service reliability, so as to improve the site location optimization side for preferentially coordinating control based on bus signals of public transit vehicle attraction
Method, solves the problems, such as bus stop position optimization.
Technical scheme：The site location optimization method for preferentially coordinating control based on bus signals of the invention, including it is following
Step：
(1) the green ripple between setting bus station on public transport major trunk roads, to realize that the coordination between multi-intersection is controlled；
(2) detector is set at crossing inlet road, the arrival of public transit vehicle is detected, and records public transit vehicle operation shape
State；According to detection information, prediction public transit vehicle reaches the moment of stop line；
(3) according to the due in of prediction, judge whether the public transit vehicle produces override requests, if producing override requests,
Then enter step (4), otherwise return to step (2)；
(4) override requests are sent to signal controlling machine, and judges whether the override requests meet default priority limit
Condition processed；
(5) if the override requests meet the preferential restrictive condition, signal controlling machine receives the override requests, updates letter
Number timing；Otherwise return to step (2)；
(6) various public transit vehicle Run-time scenarios are set, and then signal controlling machine performs the signal updated in the step (5)
Timing, while the operation of the public transit vehicle and public vehicles to diverse location bus station under different Run-time scenarios is carried out respectively
Analog simulation；
(7) according to the result of analog simulation in the step (6), different site locations are analyzed right under different Run-time scenarios
The influence of public transit vehicle and public vehicles operation conditions in system, screening public transit vehicle Operating ettectiveness lifting maximum and public vehicles
The best bus station position of operation conditions, optimal site location prioritization scheme under preferentially coordinating to control as bus signals.
Further, in the inventive method, step (1) idiographic flow includes：
(11) it is segmented to implementing section as node with bus station, judges whether to meet green ripple implementation condition, it is such as full
Foot, i.e., when intersection quantity is no less than 2 between adjacent bus station, implement green ripple signal control between bus station；Do not set otherwise
Put green ripple signal control between bus station；
(12) first according to implementing the magnitude of traffic flow ratio of each intersection of section, wall losses time weekly, using weber this
Special formula journey calculates the initial signal cycle of each intersectionAnd initial green light timeThen, according to each intersection cycle duration,
Take initial signal cycle maximum CmIt is the intersection unified signal cycle；Then, unified crossing mouthful signal period Cj=Cm, and really
Determine intersection green time gj, wherein j is intersection code name；
(13) with bus station as node, intersection is grouped, the intersection between adjacent bus station is one group, its
In, the intersection group between bus station k and k+1 is k, and intersection group k includes n altogetherkIndividual intersection Ik,j；It is green in selection group
The intersection of lamp time minimum is control intersection Ik,ci, and the interior green wave band width of group is control intersection green time, meter
Signal phase difference in calculation group between non-controlling intersection and control intersection
(14) signal phase difference of intersection between the signal phase difference of intersection between different groups, the different groups is determined
It refer to intersection interior last intersection of group kWith first intersection I in intersection group k+1k+1,1Between signal phase
Difference, distance, public transport according to bus station and intersection calculate signal phase difference θ between group in website berthing timek,k+1, institute
State public transport includes acceleration and deceleration, switch gate, boarding and alighting time in website berthing time；
(15) set according to section signal phase, adjust public transit vehicle frequency, bus departure frequency is signal
The integral multiple in cycle, green ripple passes through between realizing bus station；According to distance, friendship between bus departure position and first, downstream intersection
The initial green light central instant of prong, bus average overall travel speed, calculate bus departure moment T.
Further, in the inventive method, step (2) idiographic flow includes：
(21) each entrance driveway in intersection lays flow detector and travel time detector respectively；Wherein, flow detector
It is arranged on before stop line at 50-80m, is used to detect the flow in crossing inlet road；Travel time detector is laid on import
After road stop line at 150-200m, it is used to detect the arrival of vehicle and bus running status information；
(22) using the public transit vehicle running state information of detector collection, including public transit vehicle reaches journey time detection
Device time t, public transit vehicle average running speed v and travel time detector to 'STOP' line ahead l, prediction public transit vehicle are reached and stopped
The moment AT of fare；.
Further, in the inventive method, step (3) idiographic flow includes：
The public transit vehicle as obtained by contrasting step (22) prediction reaches the moment AT and public transit vehicle corresponding phase i of stop line
Green light time started gS,iWith end time gE,i, draw priority condition：
If a) AT≤gS,i, when bus reaches stop line, phase i is in red time, and bus can not be by parking
Line, therefore application red light is early disconnected tactful, it is determined that corresponding precession time is δi=gS,i- AT, into step 40)；
If b) AT >=gE,i, bus can not reach stop line before phase i green light deadlines, therefore apply for green light
Extension strategy, it is determined that corresponding precession time is δi=AT-gE,i, into step 40)；
If c) gS,i≤AT≤gE,iOtherwise, then public transit vehicle b need not be preferential, return to step 20).
Further, in the inventive method, the default preferential restrictive condition in step (4) includes：The green light of phase i-1
Time Gi-1Not less than minimum green timeThe green time G of phase i+1i-1Not less than minimum green timePhase i
Precession time ΔiNo more than maximum precession time
Further, in the inventive method, step (6) is specifically included：
(61) principal element of influence public transit vehicle operational efficiency is chosen, then changes the value of these factors, formed many
Plant public transit vehicle Run-time scenario；
(62) choose to the evaluation index of public transit vehicle and public vehicles running status in assessment system；
(63) signal controlling machine performs the signal timing dial updated in step (5), and under various Run-time scenarios, analog simulation
Bus station is arranged on the operation conditions of public transit vehicle and public vehicles under different positions, and then obtains under the operation conditions
The value of evaluation index, used as the result of analog simulation, the bus station position includes in intersection upstream, section and intersection
Downstream.
Beneficial effect：Compared with prior art, the present invention has advantages below：
At present, the existing research on optimization of bus station focuses mostly in traffic programme aspect, it is less from traffic control with
Management layer considers that this prevents bus station from servicing the operation of public transit vehicle well, especially excellent in bus signals
First coordinate under the premise of control, bus station largely disturbs the preferential implementation result for coordinating control.And this method with
Bus signals are preferentially coordinated premised on control, study the different bus station positions shadow for coordinating control effect preferential to bus signals
Ring.Based on the influence result that simulation analysis method is obtained, site location prioritization scheme is determined.This enables bus station
Its own regulatory function is given full play to, the demand that bus signals preferentially coordinate control is catered to well, and then ensure bus signals
The preferential implementation result for coordinating control, improves public transit vehicle operational efficiency and service level, the attraction of final lifting public transit system
Power and bearing capacity.
Brief description of the drawings
Fig. 1 is flow chart of the invention.
Fig. 2 (a) is that VISSIM emulates basic road network schematic diagram when bus station is located at intersection upstream.
Fig. 2 (b) is VISSIM emulation basic road network schematic diagram when bus station is in road.
Fig. 2 (c) is that VISSIM emulates basic road network schematic diagram when bus station is located at intersection downstream.
The graph of a relation of public transit vehicle mean delay and major trunk roads flow when Fig. 3 (a) is intersection spacing 150m.
The graph of a relation of public vehicles mean delay and major trunk roads flow when Fig. 3 (b) is intersection spacing 150m.
The graph of a relation of public transit vehicle average speed and major trunk roads flow when Fig. 3 (c) is intersection spacing 150m.
The graph of a relation of public vehicles average speed and major trunk roads flow when Fig. 3 (d) is intersection spacing 150m.
The graph of a relation of public transit vehicle mean delay and major trunk roads flow when Fig. 4 (a) is intersection spacing 300m.
The graph of a relation of public vehicles mean delay and major trunk roads flow when Fig. 4 (b) is intersection spacing 300m.
The graph of a relation of public transit vehicle average speed and major trunk roads flow when Fig. 4 (c) is intersection spacing 300m.
The graph of a relation of public vehicles average speed and major trunk roads flow when Fig. 4 (d) is intersection spacing 300m.
The graph of a relation of public transit vehicle mean delay and major trunk roads flow when Fig. 5 (a) is intersection spacing 450m.
The graph of a relation of public vehicles mean delay and major trunk roads flow when Fig. 5 (b) is intersection spacing 450m.
The graph of a relation of public transit vehicle average speed and major trunk roads flow when Fig. 5 (c) is intersection spacing 450m.
The graph of a relation of public vehicles average speed and major trunk roads flow when Fig. 5 (d) is intersection spacing 450m.
Fig. 6 is public transport delay difference percentage comparative analysis figure under different intersection spacing.
Fig. 7 is public vehicles delay difference percentage comparative analysis figure under different intersection spacing.
Specific embodiment
The present invention is further described with subordinate list below in conjunction with the accompanying drawings.
It is as shown in Figure 1 a kind of site location optimization method flow for preferentially coordinating control based on bus signals of the present invention
Figure：
(1) the green ripple of public transport is set on public transport major trunk roads, to realize that the coordination between multi-intersection is controlled；
Specifically, step (1) includes：
(11) it is segmented to implementing section as node with bus station, judges whether to meet green ripple implementation condition, works as phase
When intersection quantity is no less than 2 between adjacent bus station, it is contemplated that implement green ripple signal control between bus station；Otherwise, this is terminated
Flow；
(12) the green wavefront of public transport is set, first according to implementing the magnitude of traffic flow ratio of each intersection of section, wall losses weekly
Time, initial signal cycle and the initial green light time of each intersection are calculated using Webster method：
In formula：- intersection IjInitial signal cycle (s)
Lj- wall losses time (s) weekly
YjThe total magnitude of traffic flow ratio in-intersection
- initial green light time (s)
yjThe magnitude of traffic flow ratio in-bus travel direction
According to each intersection cycle duration, cycle maximum is taken for intersection unified signal cycle Cm, i.e.,：
Unified crossing mouthful signal period Cj=Cm, and determine intersection green time gj：
(13) with bus station as node, intersection is grouped, the intersection between adjacent bus station is one group；It is public
It is k to hand over the intersection group between site k and k+1, and intersection group k includes n altogetherkIndividual intersection Ik,j；Green time in selection group
Minimum intersection is control intersection Ik,ci, and the interior green wave band width of group is control intersection green time, in calculating group
Signal phase difference between non-controlling intersection and control intersection
In formula：Non-controlling intersection I in-k groupsk,jWith control intersection Ik,ciBetween phase difference (s)
lk,jNon-controlling intersection I in-k groupsk,jWith control intersection Ik,ciBetween road section length (m)
vk,jNon-controlling intersection I in-k groupsk,jWith control intersection Ik,ciBetween public transit vehicle average overall travel speed (m/s)
(14) determine between the signal phase difference of intersection between different groups, group signal phase difference refer in intersection group k most
Latter intersectionWith first intersection I in intersection group k+1k+1,1Between signal phase difference, according to bus station with
Distance, the public transport of intersection calculate signal between group at website berthing time (including acceleration and deceleration, switch gate, boarding and alighting time)
Phase difference θk,k+1：
In formula：θk,k+1Signal phase difference (s) between-intersection group k and intersection group k+1
- bus stop k+1 and the nearest intersection in upstreamBetween distance (m)
Lk,k+1- intersection interior last intersection of group kWith first intersection I in intersection group k+1k+1,1Between
Distance (m)
tk+1Berthing time (s) of-public transit vehicle in site k+1
(15) set according to section signal phase, adjust public transit vehicle frequency, bus departure frequency is signal
The integral multiple in cycle, green ripple passes through between realizing bus station；According to distance, friendship between bus departure position and first, downstream intersection
The initial green light central instant of prong, bus average overall travel speed, calculate bus departure moment T：
In formula：T1The initial green light central instant in first ,-downstream intersection
The distance (m) of D-between bus departure position and downstream intersection
v1,1- bus average overall travel speed (m/s)
t1- public transit vehicle is in the berthing time (s) of bus stop between position and intersection of dispatching a car
U-regulation coefficient, natural number
(2) detector is set at crossing inlet road, public transit vehicle running status is detected；According to detection information, prediction
Public transit vehicle reaches the stop line moment；
Specifically, step (2) includes：
(21) each entrance driveway in intersection lays flow detector and travel time detector respectively；Wherein, flow detector
It is arranged on before stop line at 50-80m, the flow in detection crossing inlet road；Travel time detector is laid on entrance driveway and stops
After fare at 150-200m, arrival and the bus running status information of vehicle are detected；
(22) using the public transit vehicle service data and the positional information of arrival detector for getting, prediction bus is reached
The due in AT of stop line：
(3) according to the due in of prediction, judge whether the public transit vehicle produces override requests；
Specifically, step (3) includes：
(31) the green light start time g of phase i is obtainedS,iWith finish time gE,i；
(32) if the due in of predictionThen bus b produces override requests, and the preference strategy of request is
Red light it is early disconnected, it is necessary to precession time be
(33) ifThen bus b produces override requests, the preference strategy of request for green light extend, it is necessary to
The time of extension
(34) ifOverride requests, return to step (2) are not produced then；
(4) if producing override requests, the override requests are sent to signal controlling machine, and whether judge the override requests
Meet default priority condition；
Specifically, step (4) includes：
(41) override requests of generation are sent to signal controlling machine；
(42) default preferential restrictive condition is obtained；Wherein, the preferential restrictive condition includes the minimum green light of phase i-1
TimeThe minimum green time of phase i+1With the maximum precession time of phase i
(43) if the strategy of override requests extends for green light, whenAndWhen, judge that this preferentially please
Ask and meet preferential restrictive condition, otherwise return to step (2)；If the strategy of override requests is early disconnected red light, whenAndWhen, judge that the override requests meet preferential restrictive condition, otherwise return to step (2)；Wherein, gi+1、gi-1Difference table
Show the green light duration of phase i+1, i-1；
(5) if the override requests meet the preferential restrictive condition, signal controlling machine receives the override requests, updates letter
Number timing；Otherwise return to step (2)；
If override requests meet priority condition, the override requests are received by control machine, produce corresponding preferential phase,
Update signal timing dial；Otherwise, return to step (2)；
(6) various public transit vehicle Run-time scenarios are set, and then signal controlling machine performs the signal updated in the step (5)
Timing, while the operation of the public transit vehicle and public vehicles to diverse location bus station under different Run-time scenarios is carried out respectively
Analog simulation；
Specifically, step (6) is described further with reference to an example：
The basic road network of example is located in intersection upstream, road and intersection as shown in Fig. 2 sets forth bus stop
The basic road network schematic diagram of three kinds of downstream situation；
(61) principal element of the operational efficiency of influence public transit vehicle is chosen；This example chooses the major trunk roads magnitude of traffic flow and friendship
Two factors of prong spacing；Then change the value of these factors, major trunk roads magnitude of traffic flow value is 500,800,1000,
1200th, 1300,1400,1500,1600,1700 and 1800, intersection spacing value is respectively 150m, 300m and 450m, so that
Form 30 kinds of simulating scenes；
(62) evaluation index is chosen, this example chooses public transit vehicle mean delay and average overall travel speed come to assess public transport
The running status of vehicle；In addition, in order to assess negative effect of the inventive method to public vehicles, choosing public vehicles and averagely prolonging
It is used as measurement index with average overall travel speed by mistake；
(63) it is simulation software from VISSIM, corresponding simulation parameter is set, as shown in table 1；For diverse location
Bus stop (including in intersection upstream, section and intersection downstream), such as Fig. 2 (a), (b) are adjusted respectively with shown in (c)
The major trunk roads magnitude of traffic flow and intersection spacing, to realize 30 kinds of simulating scenes in step (61), then start analog simulation；
Table 1
(7) according to the result of analog simulation in the step (6), different site locations are analyzed right under different Run-time scenarios
The influence of public transit vehicle and public vehicles operation conditions in system, screening public transit vehicle Operating ettectiveness lifting maximum and public vehicles
The best bus station position of operation conditions, optimal site location prioritization scheme under preferentially coordinating to control as bus signals.
(71) gathering simulation result, as shown in Fig. 3 to 7, analyzes different site locations under different Run-time scenarios to system
The influence of middle public transit vehicle and public vehicles operation conditions；
(711) Fig. 3 is the relation of vehicles average delay and average speed and major trunk roads flow when intersection spacing is 150m；
It can be seen that public transit vehicle and public vehicles are delayed as the increase of major trunk roads flow becomes larger, average speed is with master
The increase of arterial highway flow is gradually reduced, and overall trend is identical with the trend implemented under passive public transport priority signal control strategy；Tool
For body, vehicle delay increases relatively slower when major trunk roads flow is less than 1400veh/h, speedup when more than 1400veh/h
It is larger, and the different vehicle delays for stopping station location generation occur in that certain difference, especially when major trunk roads flow is in
Difference is become apparent during 1500-1700veh/h, and the public transport delay that intersection downstream bus stop is caused is set as we know from the figure
It is relatively low, but corresponding public vehicles delay is higher；As can be seen here, when selection sets the bus stop passed through beneficial to public transit vehicle
During position, the operation of public vehicles can be affected, but as long as influence is little, can still gone out from the optimal angle of public transport
Hair, selection is more conducive to improve the plan of establishment of public transit vehicle operational efficiency；From vehicle average overall travel speed, vehicle is average
Speed with the linear downward trend of the increase of major trunk roads flow, especially public transit vehicle speed by major trunk roads flow effect compared with
For serious, but different bus parking station locations on car speed influence difference less, intersection downstream bus stop is set
Public transit vehicle travel speed is slightly above the situation for setting intersection upstream bus stop；Generally speaking, bus signals are being implemented
After preferential, it is of a relatively high to set intersection downstream bus stop public transit vehicle operational efficiency, better than set intersection upstream and
Bus stop in road；
(712) Fig. 4 and Fig. 5 is the pass of vehicle delay and speed and major trunk roads flow when intersection spacing is 300m and 400
System's figure；It can be seen that as intersection spacing increases, influence of the bus parking station location to public traffic in priority operational efficiency
Gradually weaken；From the point of view of public transit vehicle ruuning situation, the public transportation road section delay for setting intersection downstream bus stop is slightly below
Intersection upstream bus stop, especially when major trunk roads flow is 1400-1600veh/h, this advantage becomes apparent；From
From the point of view of to public vehicles influence on system operation, influence difference of the different bus parking station locations to public vehicles is little, but vehicle is average
The speed of service is with the linear downward trend of the increase of major trunk roads flow；
(713) interpretation of result of step (711) and (712) can be obtained, and when public transport priority signal is implemented, generally be come
Say and the Effec-tive Function that intersection downstream bus stop is more conducive to public transit vehicle is set；In order to illustrate further this phenomenon,
Fig. 6 and Fig. 7 give and set under different intersection spacing intersection downstream and upstream bus stop occasions a delay the right of difference
Than figure, wherein
It is pointed out that step (711) and (712) analyze different intersections using major trunk roads flow as primary variables
The Changing Pattern of intersection upstream, section, downstream bus stop public transit vehicle and public vehicles delay is set under mouth spacing；But
It is, in actual applications, because road width and lane function design are different, it is impossible to which simple judges road with flow
Ruuning situation, and road saturation degree is an index for judging road ruuning situation and the degree of crowding；Therefore, this example proposes root
The corresponding saturation degree (as shown in table 2) of each major trunk roads flow is calculated according to the vehicle flow and the traffic capacity in simulating scenes, with
Just the conclusion with more general applicability is obtained；
From fig. 6, it can be seen that the public transport delay that bus stop generation in intersection downstream is set on the whole is less than
Intersection upstream bus stop is set, and when road saturation degree is more than 0.7 and smaller intersection spacing, this advantage is more
Substantially.Therefore, when road saturation degree is higher, intersection downstream bus stop is set and is more conducive to the control of active public transport priority signal
Implementation of strategies, it is ensured that public transit vehicle more quickly passes through；As shown in Figure 7, from from the perspective of public vehicles operation, if
Put the bus parking standing-meeting of intersection downstream and public vehicles are caused with more delays, and as the increase of road saturation degree is to society
The influence of vehicle is also in increase；But from the point of view of specific data are delayed, difference stops the delay level disparity very little that station location is caused,
Difference is generally all within 5s.Therefore, consider public vehicles and public transit vehicle delay situation, implement active public traffic in priority
During signal control strategy, should prioritizing selection setting intersection downstream bus stop；
(72) screening public transit vehicle Operating ettectiveness lifting maximum and the best bus station position of public vehicles operation conditions,
Optimal site location prioritization scheme under preferentially coordinating to control as bus signals.
(721) for the ease of implementing, bus signals are preferential, reduce influence of the bus stop to other public vehicles, Ying You
First selection design intersection upstream, downstream bus stop, and the public transport of prioritizing selection bay type multi-storied stops in the case of conditions permit
Pull in form；
(722) implement bus signals it is preferential when, when road is unsaturated, when there is not traffic congestion, friendship should be preferentially set
Prong downstream bus stop, now public transit vehicle operational efficiency is higher, and when especially intersection spacing is smaller, such case is more
Substantially；
(723) when road saturation degree is more than 0.7, the operation effect of public transit vehicle when intersection downstream bus stop is set
Rate apparently higher than set intersection upstream bus stop；Therefore, when road saturation degree is higher, road conditions are allowed, should
Prioritizing selection sets intersection downstream bus stop.
Above-described embodiment is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill of the art
For personnel, under the premise without departing from the principles of the invention, some improvement and equivalent can also be made, these are to the present invention
Claim be improved with the technical scheme after equivalent, each fall within protection scope of the present invention.
Claims (6)
1. it is a kind of based on bus signals preferentially coordinate control site location optimization method, it is characterised in that the method include with
Lower step：
(1) the green ripple between setting bus station on public transport major trunk roads, to realize that the coordination between multi-intersection is controlled；
(2) detector is set at crossing inlet road, the arrival of public transit vehicle is detected, and records public transit vehicle running status；
According to detection information, prediction public transit vehicle reaches the moment of stop line；
(3) according to the due in of prediction, judge whether the public transit vehicle produces override requests, if producing override requests, enter
Enter step (4), otherwise return to step (2)；
(4) override requests are sent to signal controlling machine, and judges whether the override requests meet default preferential limitation bar
Part；
(5) if the override requests meet the preferential restrictive condition, signal controlling machine receives the override requests, and more new signal is matched somebody with somebody
When；Otherwise return to step (2)；
(6) various public transit vehicle Run-time scenarios are set, and then signal controlling machine performs the signal updated in the step (5) and matches somebody with somebody
When, while the operation of the public transit vehicle and public vehicles to diverse location bus station under different Run-time scenarios carries out mould respectively
Intend emulation；
(7) according to the result of analog simulation in the step (6), different site locations are analyzed under different Run-time scenarios to system
The influence of middle public transit vehicle and public vehicles operation conditions, the Operating ettectiveness lifting of screening public transit vehicle is maximum and public vehicles run
The best bus station position of situation, optimal site location prioritization scheme under preferentially coordinating to control as bus signals.
2. a kind of site location optimization method for preferentially coordinating control based on bus signals according to claim 1, it is special
Levy and be, described step (1) idiographic flow includes：
(11) it is segmented to implementing section as node with bus station, judges whether to meet green ripple implementation condition, is such as met, i.e.,
When intersection quantity is no less than 2 between adjacent bus station, implement green ripple signal control between bus station；Otherwise it is not provided with public transport
Green ripple signal control between standing；
(12) first according to the magnitude of traffic flow ratio of each intersection of section, wall losses time weekly is implemented, using Robert Webster side
Journey calculates the initial signal cycle of each intersectionAnd initial green light timeThen, according to each intersection cycle duration, take just
Begin signal period maximum CmIt is the intersection unified signal cycle；Then, unified crossing mouthful signal period Cj=Cm, and determine to hand over
Prong green time gj, wherein j is intersection code name；
(13) with bus station as node, intersection is grouped, the intersection between adjacent bus station is one group, wherein,
Intersection group between bus station k and k+1 is k, and intersection group k includes n altogetherkIndividual intersection Ik,j；In selection group during green light
Between minimum intersection be control intersection Ik,ci, and the interior green wave band width of group is control intersection green time, calculating group
Signal phase difference between interior non-controlling intersection and control intersection
(14) signal phase difference for determining intersection between the signal phase difference of intersection between different groups, the different groups refers to
Interior last intersection I of intersection group kk,nkWith first intersection I in intersection group k+1k+1,1Between signal phase difference, root
According to the distance of bus station and intersection, public transport in website berthing time, signal phase difference θ between group is calculatedk,k+1, the public transport
Include acceleration and deceleration, switch gate, boarding and alighting time in website berthing time；
(15) set according to section signal phase, adjust public transit vehicle frequency, bus departure frequency is the signal period
Integral multiple, realize that green ripple passes through between bus station；According to distance, intersection between bus departure position and first, downstream intersection
Initial green light central instant, bus average overall travel speed, calculate bus departure moment T.
3. a kind of site location optimization method for preferentially coordinating control based on bus signals according to claim 1, it is special
Levy and be, described step (2) idiographic flow includes：
(21) each entrance driveway in intersection lays flow detector and travel time detector respectively；Wherein, flow detector is set
Put before stop line at 50-80m, be used to detect the flow in crossing inlet road；Travel time detector is laid on entrance driveway and stops
After fare at 150-200m, it is used to detect the arrival of vehicle and bus running status information；
(22) using the public transit vehicle running state information of detector collection, including during public transit vehicle arrival travel time detector
Between t, public transit vehicle average running speed v and travel time detector to 'STOP' line ahead l, prediction public transit vehicle reaches stop line
Moment AT；.
4. a kind of site location optimization method for preferentially coordinating control based on bus signals according to claim 3, it is special
Levy and be, described step (3) idiographic flow includes：
The moment AT that the public transit vehicle as obtained by contrasting step (22) prediction reaches stop line is green with public transit vehicle corresponding phase i
Lamp time started gS,iWith end time gE,i, draw priority condition：
If a) AT≤gS,i, bus reach stop line when, phase i be in red time, bus can not by stop line,
Therefore application red light is early disconnected tactful, it is determined that corresponding precession time is δi=gS,i- AT, into step 40)；
If b) AT >=gE,i, bus can not reach stop line before phase i green light deadlines, therefore application green light extends
Strategy, it is determined that corresponding precession time is δi=AT-gE,i, into step 40)；
If c) gS,i≤AT≤gE,iOtherwise, then public transit vehicle b need not be preferential, return to step 20).
5. a kind of according to claim 1,2,3 or 4 preferentially coordinates the site location optimization side of control based on bus signals
Method, it is characterised in that the default preferential restrictive condition in described step (4) includes：The green time G of phase i-1i-1No
Less than minimum green timeThe green time G of phase i+1i-1Not less than minimum green timePhase i it is preferential when
Between ΔiNo more than maximum precession time
6. a kind of according to claim 1,2,3 or 4 preferentially coordinates the site location optimization side of control based on bus signals
Method, it is characterised in that described step (6) is specifically included：
(61) principal element of influence public transit vehicle operational efficiency is chosen, then changes the value of these factors, form various public affairs
Hand over vehicle Run-time scenario；
(62) choose to the evaluation index of public transit vehicle and public vehicles running status in assessment system；
(63) signal controlling machine performs the signal timing dial updated in step (5), and under various Run-time scenarios, analog simulation public transport
Website is arranged on the operation conditions of public transit vehicle and public vehicles under different positions, and then obtains evaluation under the operation conditions
Refer to target value, used as the result of analog simulation, the bus station position is including under in intersection upstream, section and intersection
Trip.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108682143A (en) * | 2018-04-25 | 2018-10-19 | 长安大学 | A kind of variable bus platform system and its selection method of nearly signal lamp intersection |
| CN109191835A (en) * | 2018-09-03 | 2019-01-11 | 北京全路通信信号研究设计院集团有限公司 | A kind of control method and system of tramcar operation |
| CN111553043A (en) * | 2020-05-19 | 2020-08-18 | 北京百度网讯科技有限公司 | Traffic index calculation model test method, traffic simulation method and device |
| CN112053580A (en) * | 2020-09-07 | 2020-12-08 | 郑州大学 | Intersection bus signal priority control optimization method |
| CN112509342A (en) * | 2020-12-04 | 2021-03-16 | 东南大学 | Long trunk line intersection signal coordination control method based on segmented green wave |
| CN113947901A (en) * | 2021-10-15 | 2022-01-18 | 长沙理工大学 | Rapid bus station position arrangement method based on intersection timing |
| CN115311868A (en) * | 2022-07-20 | 2022-11-08 | 武汉理工大学 | Bus priority-based trunk line coordination control method and device |
| CN116524743A (en) * | 2023-06-25 | 2023-08-01 | 南京理工大学 | Bus signal lamp priority release method and equipment based on simulation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011159710A1 (en) * | 2010-06-15 | 2011-12-22 | Global Traffic Technologies, Llc | Control of traffic signal phases |
| CN104485005A (en) * | 2014-12-04 | 2015-04-01 | 东南大学 | Intersection multiline public traffic vehicle priority request conflict coordination control method |
-
2017
- 2017-04-06 CN CN201710219290.2A patent/CN106935044A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011159710A1 (en) * | 2010-06-15 | 2011-12-22 | Global Traffic Technologies, Llc | Control of traffic signal phases |
| CN104485005A (en) * | 2014-12-04 | 2015-04-01 | 东南大学 | Intersection multiline public traffic vehicle priority request conflict coordination control method |
Non-Patent Citations (1)
| Title |
|---|
| 王达琳: ""公交优先信号协调控制下的站点位置优化研究"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108682143A (en) * | 2018-04-25 | 2018-10-19 | 长安大学 | A kind of variable bus platform system and its selection method of nearly signal lamp intersection |
| CN109191835A (en) * | 2018-09-03 | 2019-01-11 | 北京全路通信信号研究设计院集团有限公司 | A kind of control method and system of tramcar operation |
| CN111553043B (en) * | 2020-05-19 | 2023-09-26 | 北京百度网讯科技有限公司 | Traffic index calculation model test method, traffic simulation method and device |
| CN111553043A (en) * | 2020-05-19 | 2020-08-18 | 北京百度网讯科技有限公司 | Traffic index calculation model test method, traffic simulation method and device |
| CN112053580A (en) * | 2020-09-07 | 2020-12-08 | 郑州大学 | Intersection bus signal priority control optimization method |
| CN112509342A (en) * | 2020-12-04 | 2021-03-16 | 东南大学 | Long trunk line intersection signal coordination control method based on segmented green wave |
| CN112509342B (en) * | 2020-12-04 | 2021-12-28 | 东南大学 | Long trunk line intersection signal coordination control method based on segmented green wave |
| CN113947901A (en) * | 2021-10-15 | 2022-01-18 | 长沙理工大学 | Rapid bus station position arrangement method based on intersection timing |
| CN113947901B (en) * | 2021-10-15 | 2022-10-25 | 长沙理工大学 | Rapid bus station position arrangement method based on intersection timing |
| CN115311868A (en) * | 2022-07-20 | 2022-11-08 | 武汉理工大学 | Bus priority-based trunk line coordination control method and device |
| CN115311868B (en) * | 2022-07-20 | 2023-07-25 | 武汉理工大学 | Main line coordination control method and device based on bus priority |
| CN116524743A (en) * | 2023-06-25 | 2023-08-01 | 南京理工大学 | Bus signal lamp priority release method and equipment based on simulation |
| CN116524743B (en) * | 2023-06-25 | 2023-09-15 | 南京理工大学 | Bus signal lamp priority release method and equipment based on simulation |
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