CN102750823B - Method for dynamically setting special inlet lane for trucks at signal-controlled intersection and for managing running of inlet lane - Google Patents

Method for dynamically setting special inlet lane for trucks at signal-controlled intersection and for managing running of inlet lane Download PDF

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CN102750823B
CN102750823B CN201210232533.3A CN201210232533A CN102750823B CN 102750823 B CN102750823 B CN 102750823B CN 201210232533 A CN201210232533 A CN 201210232533A CN 102750823 B CN102750823 B CN 102750823B
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traffic
lorry
lane
entrance driveway
vehicle
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CN102750823A (en
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孙剑
欧阳吉祥
李克平
唐克双
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Tongji University
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Abstract

The invention belongs to the field of traffic design and management, and particularly relates to a method for dynamically setting a special inlet lane for trucks at a signal-controlled intersection and for managing the running of the inlet lane. The method serves as a complete technology, which is used for dynamically setting the special inlet lane for the trucks and for application management of the inlet lane, aims at reducing and eliminating the mutual influence of a coach stream and a truck stream and improving the traffic efficiency and safety at the road intersection at which coaches and the trucks run under the condition that the difference between starting behaviors and dissipation behaviors of the coaches and the trucks at the inlet lane of the signal-controlled intersection are taken into consideration. By the method, the traffic capacity of a road can be effectively improved; when the flow and the proportion of the vehicles reach a threshold value, a special coach lane and a special truck lane are set, so that the running delay at the intersection can be reduced, various potential conflicts can be reduced, and the traffic safety is improved; and furthermore, the method has the advantages of simplicity in control operation, high instantaneity, high-efficiency guidance for the vehicle streams at the inlet lane of the signal-controlled intersection and the like.

Description

The special entrance driveway setting of the dynamic lorry of signalized crossing and operation management method
Technical field
The invention belongs to traffic administration control field, be specifically related to the special entrance driveway setting of the dynamic lorry of a kind of signalized crossing and operation management method.
Background technology
Along with Chinese society urbanization fast, industrialization and motorization process, passenger and freight traffic sustainable development, highway system particularly Urban Fringe highway is not only being born take car as the main traffic of travelling frequently, and is also bearing the demand take lorry as main freight transportation.Due to reasons such as vehicle performance, load-carryings, signalized crossing green light open bright after, it is generally longer that compare car the start-up time (vehicle travels the spent time from stationary state to normal speed) of lorry.According to the actual observation result of multiple crossings, Shanghai City, show, minibus start-up time is 4.0-6.0 second, and truck start-up time is 8.0-12.0 second.It is serious that the difference of start-up time causes coming truck car loss start-up time below, thereby form " startup bottleneck "; Lorry speed of operation is lower in addition, and mutual serious interference between passenger vehicle, it is the formation " moving bottleneck " of mutually overtaking other vehicles between truck for dragon, cause crossing inlet road saturation volume rate and traffic capacity loss serious, and because the phase mutual interference between car and lorry causes security incident to take place frequently, greatly affected traffic efficiency and the safety level of service of crossing.
Along with the development of intelligent transportation system (ITS), the detection means of vehicle is more and more diversified, the magnitude of traffic flow that not only can dynamic acquisition crossing, can also distinguish different automobile types, these detection techniques comprise: license plate identification technology (can divide by the associated model data of car plate reservoir area), toroid winding (are called again ground induction coil, by car weight, vehicle commander, distinguish), microwave radar and video detect (video frequency vehicle detecting device is comprised of the focusing video camera and the video processor that are arranged on on-the-spot door frame or trackside column, by vehicle commander, distinguishes) etc.The special entrance driveway setting of the dynamic lorry of the signalized crossing dynamic management theory based on changeable driveway technology just, according to the vehicle flowrate of crossing upstream detection and vehicle composition data, towards static cost control and the dynamic needs of controlling two aspects, consider traffic efficiency and safety, the new technology of the lane function in crossing inlet road being carried out to dynamic optimization configuration.Dynamic passenger-cargo special lane is set for traffic organization optimization, improves signalized intersections traffic efficiency and have safely very important realistic meaning.
Summary of the invention
The present invention is considering the otherness of size passenger/cargo in startup and the dissipation behavior of signalized crossing entrance driveway, in order to reduce and to eliminate influencing each other between passenger-cargo wagon flow, improve traffic efficiency and safety, for passenger-cargo mixed row intersection, the special entrance driveway setting of the dynamic lorry of a kind of signalized crossing and operation management method are proposed.
The present invention has following three features:
One, from traditional section, special lane is set or changeable driveway is different, the present invention utilizes after the canalization design of crossing, the reality of the general broadening of entrance driveway, and only entrance driveway is set to changeable driveway.When not affecting road section capacity, greatly improve operational efficiency and the safety of crossing like this;
Two,, according to the vehicle queue length of the different entrance driveway that detect in real time, can under supporting, information detection technology carry out the dynamic adjustment of entrance driveway lane function;
Three, " queue length equilibrium " principle that the present invention proposes is adjusted entrance driveway lane function, can take into account the current demand of justice of different entrance driveway, and the guiding conscious obedience of different automobile types traffic participant track signal management, is conducive to the promotion and implementation of this technical method.
The special entrance driveway setting of the dynamic lorry of signalized crossing and operation management method that the present invention proposes, concrete steps are as follows:
(1): n cycle x Through Lane flow value
Figure 2012102325333100002DEST_PATH_IMAGE001
, traffic composition lorry ratio
Figure 111583DEST_PATH_IMAGE002
obtain:
In each signal period, by upstream, twin coil detecting device is set, when vehicle process twin coil detecting device, according to the frequency change of two coil oscillatory circuits, loop length and vehicle, through the duration of coil, determine vehicle commander; The Was Used of the maximum frequency change value of definite vehicle commander and oscillatory circuit is classified to vehicle, thereby obtain each track straightgoing vehicle flow and lorry ratio.According to X the Through Lane flow value that before n cycle, several cycles arrive , traffic composition lorry ratio
Figure 309215DEST_PATH_IMAGE004
, it is weighted on average, obtain this cycle to predict X the Through Lane flow value reaching , traffic composition lorry ratio ;
(2): implement 1 special entrance driveway of lorry, the magnitude of traffic flow threshold value of x-1 the special entrance driveway of passenger vehicle (
Figure 2012102325333100002DEST_PATH_IMAGE005
,
Figure 476386DEST_PATH_IMAGE006
), traffic composition lorry proportion threshold value (
Figure DEST_PATH_IMAGE007
,
Figure 590842DEST_PATH_IMAGE008
) determine:
By X Through Lane flow value
Figure 792016DEST_PATH_IMAGE001
, traffic composition lorry ratio
Figure 500078DEST_PATH_IMAGE002
substitution traffic model, calculates at the upstream vehicle flowrate Q ' ' that implements the special entrance driveway of passenger-cargo carriage crossing model
Figure DEST_PATH_IMAGE009
( ,
Figure 52511DEST_PATH_IMAGE006
) in situation, when lorry accounts for all vehicle ratio value P ' '
Figure 486903DEST_PATH_IMAGE009
(
Figure 619944DEST_PATH_IMAGE007
,
Figure 797985DEST_PATH_IMAGE008
) time, intersection evaluation index is incured loss through delay
Figure 700082DEST_PATH_IMAGE010
, safety index
Figure DEST_PATH_IMAGE011
; Obtain x-1 the special entrance driveway of passenger vehicle magnitude of traffic flow threshold value (
Figure 430009DEST_PATH_IMAGE005
,
Figure 784767DEST_PATH_IMAGE006
), traffic composition lorry proportion threshold value (
Figure 766499DEST_PATH_IMAGE007
,
Figure 523102DEST_PATH_IMAGE008
);
(3): special entrance driveway arranges judgement:
1) if n the cycle Through Lane upstream volume of traffic
Figure 293438DEST_PATH_IMAGE001
with traffic composition lorry ratio
Figure 401071DEST_PATH_IMAGE002
do not reach in the lump threshold value, keep the passenger-cargo mixed row in Through Lane downstream inlet road constant, upstream twin coil detecting device carries out n+1 the cycle Through Lane volume of traffic
Figure 920914DEST_PATH_IMAGE012
with n+1 cycle traffic composition detection;
2) if n the cycle Through Lane upstream volume of traffic with traffic composition lorry ratio
Figure 869333DEST_PATH_IMAGE002
all reach threshold value, at Through Lane, start the special entrance driveway of independent lorry is set, by the indication (see figure 2) of roadside, upstream, crossing LED lane function Warning Mark, lorry, passenger vehicle are taken their own roads;
(4): the special entrance driveway of dynamic lorry of " queue length equilibrium " principle regulates
Detect enabling after passenger-cargo special entrance driveway, as entrance driveway queue length ratio L x> time, according to queue length homeostatic principle, utilize the indication of the LED of entrance driveway place lane function Warning Mark, forbid that jubilee wagon (as 4.5 tons of following lorries of load-carrying) enters the special entrance driveway of lorry; Entrance driveway queue length ratio L x>
Figure DEST_PATH_IMAGE015
time, forbid that medium-sized (as 8 tons of following lorries of load-carrying) load truck enters the special entrance driveway of lorry;
(5): special entrance driveway is replied judgement
N+1 cycle, to the Through Lane volume of traffic having detected
Figure 646851DEST_PATH_IMAGE012
with traffic composition lorry ratio
Figure 112467DEST_PATH_IMAGE013
judge: while reaching threshold value, keep passenger-cargo special entrance driveway constant, when vehicle proportion of composing does not meet special lane threshold value is set, revert to passenger-cargo mixed stomatodeum of advancing;
Wherein,
Figure 439587DEST_PATH_IMAGE016
,
Figure DEST_PATH_IMAGE017
for implementing the delay He Huan road behavior traffic conflict number of times of passenger-cargo special entrance driveway crossing model;
Figure 443184DEST_PATH_IMAGE018
,
Figure DEST_PATH_IMAGE019
for implementing the delay He Huan road behavior traffic conflict number of times of passenger-cargo mixed stomatodeum crossing model of advancing.In step (5), entrance driveway queue length ratio L x=L h/ L k, L h, L kbe respectively the special entrance driveway queue length of the special entrance driveway of crossing lorry and passenger vehicle,
Figure 367146DEST_PATH_IMAGE014
,
Figure 952848DEST_PATH_IMAGE015
be a setting ratio, generally can be made as respectively 1.2,1.8.
In the present invention, described traffic model can be that Traffic Flow Simulation Models can be also according to the delay theoretical calculation model in HCM2000.
Beneficial effect of the present invention is:
1. from traditional section, special lane is set or changeable driveway is different, the present invention utilizes after the canalization design of crossing, the reality of the general broadening of entrance driveway, and only entrance driveway is set to changeable driveway.When not affecting road section capacity, greatly improve operational efficiency and the safety of crossing like this.
2. along with the development of traffic flow detection technique, lorry special lane of the present invention setting can dynamically be adjusted according to the magnitude of traffic flow, each vehicle composition and signal timing dial situation, can adapt to all kinds of traffic road detection techniques.
3. the present invention adjusts entrance driveway lane function according to " queue length equilibrium " principle, can take into account the current demand of justice of the different vehicle of different entrance driveway, can effectively guide the conscious obedience of different automobile types traffic participant track signal management, and exploitativeness is strong.
Accompanying drawing explanation
Fig. 1 is dynamically changeable lorry special lane control flow chart.
Fig. 2 is embodiment schematic diagram.
Embodiment
Below embodiments of the invention are elaborated: the present embodiment is implemented under take technical solution of the present invention as prerequisite, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.In the present invention, in the VISSIM of simulation software, build respectively multiple craspedodrome entrance driveway crossing models of passenger-cargo mixed row and the special entrance driveway of variable lorry crossing model is set and obtain evaluation index and determine and set up special lane threshold value.
Embodiment 1: the inventive method is for municipal highway crossing, somewhere, this city's main road axles is two-way eight tracks, entrance driveway at signalized crossing place is divided into: a special left-hand rotation entrance driveway, a special right-hand rotation entrance driveway, three craspedodrome entrance driveway, be passenger-cargo mixed row, crossing is four phase signal timings, carries out embodiment checking in traffic simulation software VISSIM.In VISSIM, according to the flow implementation shown in the control of dynamic lorry entrance driveway, dynamically control, the present embodiment is to arrange that all lorries are in the special import of lorry track as example, and step is as follows:
1) n cycle x Through Lane flow value
Figure 507326DEST_PATH_IMAGE001
, traffic composition lorry ratio obtain: before n cycle starts, by traffic simulation software VISSIM data statistics function, intercept 3 cycle x Through Lane flow values before n cycle
Figure 148709DEST_PATH_IMAGE003
, traffic composition lorry ratio , to it be weighted on average (
Figure 251980DEST_PATH_IMAGE020
;
Figure DEST_PATH_IMAGE021
), obtain this cycle x Through Lane flow value
Figure 185431DEST_PATH_IMAGE001
, traffic composition lorry ratio
Figure 388879DEST_PATH_IMAGE002
;
2) implement 1 special entrance driveway of lorry, the magnitude of traffic flow threshold value of x-1 the special entrance driveway of passenger vehicle (
Figure 949173DEST_PATH_IMAGE005
,
Figure 517558DEST_PATH_IMAGE006
), traffic composition lorry ratio ( ,
Figure 740915DEST_PATH_IMAGE008
) determine: by flow value cycle length
Figure 155716DEST_PATH_IMAGE001
, traffic composition lorry ratio
Figure 160581DEST_PATH_IMAGE002
bring Traffic Flow Simulation Models into, operation obtains at the upstream vehicle flowrate Q ' ' that implements the special entrance driveway of passenger-cargo carriage crossing model
Figure 723149DEST_PATH_IMAGE009
(
Figure 206083DEST_PATH_IMAGE005
, ) in situation, when lorry accounts for all vehicle ratio value P ' '
Figure 651157DEST_PATH_IMAGE009
(
Figure 638704DEST_PATH_IMAGE007
,
Figure 931189DEST_PATH_IMAGE008
) time, assess effectiveness index is incured loss through delay
Figure 320582DEST_PATH_IMAGE010
, safety index
Figure 729566DEST_PATH_IMAGE011
.
In this example, the total wheel traffic of 3 Through Lanes in upstream, crossing is respectively by flow cycle length
Figure 204410DEST_PATH_IMAGE001
detected value is set to 600veh/h, 900veh/h, 1200veh/h and 1500veh/h, vehicle composition lorry ratio since 10%, be incremented to 50%(respectively and see Fig. 2), simulation data evaluating data is as shown in table 1, table 2.
Table 1 is enabled the delay simulation result contrast before and after passenger-cargo special entrance driveway
Figure DEST_PATH_IMAGE023
Table 2 is enabled the safe simulation result contrast before and after passenger-cargo special entrance driveway
Figure DEST_PATH_IMAGE025
Comprehensive above table 1,2 is analyzed and can be obtained: under the facility condition of 3 the craspedodrome entrance driveway in crossing, by assess effectiveness index, incur loss through delay , safety index
Figure DEST_PATH_IMAGE027
the magnitude of traffic flow threshold value of the selected special entrance driveway of passenger-cargo carriage of principle (
Figure 977566DEST_PATH_IMAGE028
,
Figure DEST_PATH_IMAGE029
) be (600veh/h, 1200veh/h), traffic composition lorry ratio (
Figure 64339DEST_PATH_IMAGE030
,
Figure DEST_PATH_IMAGE031
) be (15%, 25%);
3) if n the cycle Through Lane upstream volume of traffic detected
Figure 755084DEST_PATH_IMAGE001
form with traffic
Figure 847630DEST_PATH_IMAGE002
do not reach in the lump above-mentioned threshold value: keep the passenger-cargo mixed row in Through Lane downstream inlet road constant;
4) if n the cycle Through Lane upstream volume of traffic detected
Figure 536101DEST_PATH_IMAGE001
form with traffic
Figure 47853DEST_PATH_IMAGE002
all reach above-mentioned threshold value: in Through Lane upstream inlet road, start the special entrance driveway of independent passenger-cargo carriage is set;
5) before n+1 cycle starts, to the Through Lane volume of traffic having detected
Figure 214392DEST_PATH_IMAGE032
form with traffic judge: while reaching threshold value, keep passenger-cargo special entrance driveway constant, when vehicle proportion of composing etc. is not in threshold value, revert to passenger-cargo mixed stomatodeum of advancing;
6), in each cycle, repeat above step.
Finally obtain data as following table 3, comparative evaluation's result of implementation result.At upstream, crossing vehicle flowrate 600veh/h, when lorry ratio is 20%, incurs loss through delay and be reduced to 43.6s from the 49.0s of passenger-cargo mixed row, improved 11.0%, improved efficiency is obvious; Traffic conflict number of times is reduced to 15 times from 21 times, has reduced 28.6%, and security is also significantly improved.Therefore under this dynamic management technology design, traffic efficiency and the security in crossing inlet road all get a promotion.
Table 3 is implemented dynamically passenger-cargo special entrance driveway and is optimized evaluation table
? Traffic conflict number Incur loss through delay (s)
Passenger-cargo mixed row 21 49.0
Passenger-cargo special entrance driveway is set 15 43.6
Improve effect 28.6% 11.0%

Claims (2)

1. a method for the special entrance driveway of the dynamic lorry in signalization control crossing, is characterized in that concrete steps are as follows:
(1): n cycle x Through Lane flow value , traffic composition lorry ratio
Figure 2012102325333100001DEST_PATH_IMAGE002
obtain:
In each signal period, by upstream, twin coil detecting device is set, when vehicle process twin coil detecting device, according to the frequency change of two coil oscillatory circuits, loop length and vehicle, through the duration of coil, determine vehicle commander; The Was Used of the maximum frequency change value of definite vehicle commander and oscillatory circuit is classified to vehicle, thereby obtain each track straightgoing vehicle flow and lorry ratio;
According to X the Through Lane flow value that before n cycle, several cycles arrive
Figure 860710DEST_PATH_IMAGE003
, lorry ratio
Figure 2012102325333100001DEST_PATH_IMAGE004
, it is weighted on average, obtain n cycle X Through Lane flow value
Figure 765081DEST_PATH_IMAGE001
, traffic composition lorry ratio
Figure 222607DEST_PATH_IMAGE002
;
(2): implement 1 special entrance driveway of lorry, the magnitude of traffic flow threshold value of x-1 the special entrance driveway of passenger vehicle ( ,
Figure 2012102325333100001DEST_PATH_IMAGE006
), traffic composition lorry proportion threshold value (
Figure 984075DEST_PATH_IMAGE007
,
Figure 2012102325333100001DEST_PATH_IMAGE008
) determine:
By X Through Lane flow value
Figure 375742DEST_PATH_IMAGE001
, traffic composition lorry ratio
Figure 636960DEST_PATH_IMAGE002
substitution Traffic Flow Simulation Models, calculates at the upstream vehicle flowrate Q ' ' that implements the special entrance driveway of passenger-cargo carriage crossing model
Figure 368155DEST_PATH_IMAGE009
(
Figure 423836DEST_PATH_IMAGE005
,
Figure 240482DEST_PATH_IMAGE006
) in situation, when lorry accounts for all vehicle ratio value P ' '
Figure 39811DEST_PATH_IMAGE009
(
Figure 625513DEST_PATH_IMAGE007
, ) time, intersection evaluation index is incured loss through delay
Figure 2012102325333100001DEST_PATH_IMAGE010
, safety index ; Obtain x-1 the special entrance driveway of passenger vehicle magnitude of traffic flow threshold value (
Figure 759057DEST_PATH_IMAGE005
,
Figure 464845DEST_PATH_IMAGE006
), traffic composition lorry proportion threshold value ( ,
Figure 653567DEST_PATH_IMAGE008
);
(3): special entrance driveway arranges judgement:
1) if n the cycle Through Lane upstream volume of traffic with traffic composition lorry ratio
Figure 354992DEST_PATH_IMAGE002
do not reach in the lump threshold value, keep the passenger-cargo mixed row in Through Lane downstream inlet road constant, upstream twin coil detecting device carries out n+1 the cycle Through Lane volume of traffic
Figure 2012102325333100001DEST_PATH_IMAGE012
with n+1 cycle traffic composition
Figure 251273DEST_PATH_IMAGE013
detection;
If n the cycle Through Lane upstream volume of traffic
Figure 264228DEST_PATH_IMAGE001
with traffic composition lorry ratio all reach threshold value, at Through Lane, start the special entrance driveway of independent lorry is set, by the indication of roadside, upstream, crossing LED lane function Warning Mark, lorry, passenger vehicle are taken their own roads;
(4): the special entrance driveway of dynamic lorry of " queue length equilibrium " principle regulates
Detect enabling after passenger-cargo special entrance driveway, as entrance driveway queue length ratio L x>
Figure 2012102325333100001DEST_PATH_IMAGE014
time, according to queue length homeostatic principle, utilize the indication of the LED of entrance driveway place lane function Warning Mark, forbid that jubilee wagon enters the special entrance driveway of lorry; Entrance driveway queue length ratio L x>
Figure 686168DEST_PATH_IMAGE015
time, forbid that transportation medium truck enters the special entrance driveway of lorry;
(5): special entrance driveway is replied judgement
N+1 cycle, to the Through Lane volume of traffic having detected
Figure 691033DEST_PATH_IMAGE012
with traffic composition lorry ratio
Figure 191285DEST_PATH_IMAGE013
judge: while reaching threshold value, keep passenger-cargo special entrance driveway constant, when vehicle proportion of composing does not meet special lane threshold value is set, revert to passenger-cargo mixed stomatodeum of advancing;
Wherein, ,
Figure 736536DEST_PATH_IMAGE017
for implementing the delay He Huan road behavior traffic conflict number of times of passenger-cargo special entrance driveway crossing model;
Figure 2012102325333100001DEST_PATH_IMAGE018
,
Figure 396056DEST_PATH_IMAGE019
for implementing the delay He Huan road behavior traffic conflict number of times of passenger-cargo mixed stomatodeum crossing model of advancing; In step (5), entrance driveway queue length ratio L x=L h/ L k, L h, L kbe respectively the special entrance driveway queue length of the special entrance driveway of crossing lorry and passenger vehicle,
Figure 571823DEST_PATH_IMAGE014
, be made as respectively 1.2,1.8.
2. the method for the special entrance driveway of the dynamic lorry in signalization control according to claim 1 crossing, is characterized in that described traffic model adopts Traffic Flow Simulation Models or theoretical analytic model.
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CN107146423B (en) * 2017-06-15 2024-04-09 华南理工大学 Intersection entrance lane vehicle guiding type signal control device and method
CN108091146A (en) * 2017-12-12 2018-05-29 常州大学 A kind of traffic lights based on artificial intelligence it is non-wait whens manage system
CN111932911A (en) * 2020-07-01 2020-11-13 淮阴工学院 Control method for intersection group real-time lane changing under cooperative vehicle and road environment
CN114550327B (en) * 2022-04-27 2022-08-12 四川遂广遂西高速公路有限责任公司 Single-person multi-lane situation awareness centralized control system and method
CN116416806A (en) * 2023-06-12 2023-07-11 天津市政工程设计研究总院有限公司 Intelligent network allies oneself with autopilot freight transportation lane control system

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