CN102787569B - Control method of junction reversible lane marks and lane line lengths - Google Patents

Control method of junction reversible lane marks and lane line lengths Download PDF

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CN102787569B
CN102787569B CN201210308659.4A CN201210308659A CN102787569B CN 102787569 B CN102787569 B CN 102787569B CN 201210308659 A CN201210308659 A CN 201210308659A CN 102787569 B CN102787569 B CN 102787569B
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length
solid line
line
veer
lane
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CN102787569A (en
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史忠科
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Northwestern Polytechnical University
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Northwestern Polytechnical University
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Abstract

The invention discloses a control method of junction reversible lane marks and lane line lengths, used for solving the technical problem of difficulty in the coordination of urban junction queue length. The technical scheme is as follows: reversible lane marks are arranged at a junction so that vehicle queue lengths in all directions are changed; and reversible real and virtual lane lines are arranged and whether going-straight, left-turning and right-turning boundary lane lines are real or virtual lines changed on the basis of queue length at the given junction in each direction within each time interval are obtained according to counting. Through the control method disclosed by the invention, the objective of coordinating the queue length at the junction in each direction is achieved and the coordination control capacity of the junction is improved.

Description

Intersection changeable driveway identification method
Technical field
The present invention relates to intelligent transportation system, particularly relate to a kind of intersection changeable driveway identification method.
Background technology
Along with economic fast development, the continuous increase of automobile pollution, the congested in traffic common focus of paying close attention in countries in the world and the major issue of being badly in need of solving of having become, the congested in traffic while has also been caused serious environment pollution, in nine kinds of main air pollutants, six kinds relevant with motor vehicle exhaust emission directly or indirectly, and under traffic congestion state, automobile is discharged when concentration of narmful substance ratio normally travels and exceeded 5~6 times; In addition, congested in traffic and traffic accident is the two large problems of urban traffic symbiosis.On the one hand, the traffic flow that urban traffic peak time is intensive, takes place frequently traffic accident, very easily causes serious traffic congestion; On the other hand, in the time that traffic congestion occurs, vehicle driver, because excessively wait for, easily loses patience, and traffic accident odds is increased greatly; Visible traffic congestion has become a matter of the whole that affects global urban sustainable development.
Due to the seriousness of congested in traffic problem, existing numerous scholars have carried out research both at home and abroad, alleviate at present congested in traffic groundwork and substantially concentrate on the coordination control strategy of often sending out property and sporadic crowded control strategy, particularly city traffic network; The countermeasure of solution or alleviation recurrent congestion is mainly to expand to supply with and two aspects of controlling consumption, and these strategies are summarised as vehicle needs control, how much improvement and the management three aspects: to transport need; Following several technology is taked in the control of vehicle needs: control, regional channel control and the region toll control of track entrance control, track main line control, right-of-way; The another kind of method of urban highway traffic recurrent congestion control is to improve the traffic capacity of bottleneck road, its basic solution is to be repartitioned track or increased track by the reconstruction in whole cross section by the curb on road surface, or adds branch line on original circuit; The third method is the management to transport need, and this method can reduce peak period transport need, and it is emphasized to reduce vehicle and uses and encourage non-peak period to use express lane.Technology used comprises share car, park and shift and improvement Public Transport Service etc., as: the dispersion on transport need peak, effective utilization of automobile, improvement Public Transport Service etc.; Control strategy to incident is mainly: 1) set up surveillance: find in time and identify the character of event, determine suitable action.Comprise artificial supervision, detector monitors, closed-circuit television and air surveillance etc.; 2) set up Event Service system: while there is traffic accident, provide in time emergency services (ambulance, obstacles removing car etc.); When vehicle breaks down, provide maintenance service, get rid of rapidly with the driver who helps to find oneself in the mire the event that causes delay; 3) provide information system for driver: in the scope that may affect at traffic events, for driver provides information.
In city traffic network, arterial traffic has been born a large amount of traffic loadings, research arterial street traffic control strategy, the coordination control effect of raising arterial traffic, to reducing parking rate and the traffic delay on arterial highway, improve urban highway traffic situation and be significant.City intersection control is in urban traffic control, to be easy to realize and widely used a kind of control mode, is also that urban traffic area is coordinated the basis of controlling; Now a lot of research work are mostly to concentrate on according to conventional method and intelligent method signal lamp to carry out timing, or consider the problem such as impact of pedestrian, non power driven vehicle, and do not solve for the widely different coordination problem of craspedodrome, left-hand rotation or right-hand rotation vehicle queue length, particularly the queuing line at part crossing is very long, only relies on signal controlling and is difficult to effective coordination.
Summary of the invention
Coordinate difficult deficiency in order to overcome existing city intersection queue length, the invention provides a kind of intersection changeable driveway identification method.The method changes all directions vehicle queue length by changeable driveway mark is set in intersection; Variable solid line, dotted line lane line are set, and the queue length that obtains all directions of each period of given intersection according to statistics changes reality or the void of keeping straight on left and right veer boundary lane line, reach and coordinate intersection all directions queue length control object, improve the coordination control ability of intersection.
The technical solution adopted for the present invention to solve the technical problems is: a kind of intersection changeable driveway identification method, is characterized in comprising the following steps:
Keep straight in step 1, intersection and left and right veer boundary lane line is set to regular length solid line and variable solid line, dotted line lane line two parts form, and solid line and dotted line are indicated realization by LED;
Step 2, fixing solid line length arrange length and equal to keep straight on and the shortest length of left and right veer boundary lane line solid line, and calculating formula is: L min(λ k) for=int
In formula, L minfor craspedodrome and the shortest length of left and right veer boundary lane line solid line, k is number of track-lines, and λ is the coefficient that is greater than equivalent length of wagon, and int is for rounding symbol;
Step 3, variable solid line maximum length equal to keep straight on and deduct regular length solid line with the maximum length of left and right veer boundary lane line solid line length is set, and keeping straight on the maximum length calculating formula of left and right veer boundary lane line solid line is: L max(η k) for=int
In formula, L maxfor craspedodrome and the maximum length of left and right veer boundary lane line solid line, k is number of track-lines, and η is the coefficient that is greater than the doubly above equivalent length of wagon of m, and int is for rounding symbol; Keep straight on and left and right veer boundary lane line variable part=L max-L min;
Step 4, change trains or buses to divide separately or left and right queue length of changing trains or buses reaches while assert saturation length a% left and right, the left and right diatom of changing trains or buses arranges separately; Assert that saturation length is taken as the length that 2-3 signal period pass through; Change trains or buses to divide or turn left to keep straight on, turn right and keep straight on and left and right queue length of changing trains or buses is not enough while assert saturation length b% when left and right, with ground electronic route sign, left turn lane is set and is arranged to craspedodrome road, the right-turn lane craspedodrome road that is set to turn right, meanwhile, keep straight on and be set to left and right veer boundary lane line solid line length L:
Fixing solid line length L min< L < fixes solid line length L min+ (1-a%) variable solid line length doubly,
Wherein, a, b are positive number, according to road conditions and experience setting.
The invention has the beneficial effects as follows: owing to changing all directions vehicle queue length by changeable driveway mark is set in intersection; Variable solid line, dotted line lane line are set, and the queue length that obtains all directions of each period of given intersection according to statistics changes reality or the void of keeping straight on left and right veer boundary lane line, reach and coordinate intersection all directions queue length control object, improved the coordination control ability of intersection.
Below in conjunction with detailed description of the invention, the present invention is elaborated.
Detailed description of the invention
Intersection of the present invention changeable driveway identification method concrete steps are as follows:
Taking Xi'an high-new road and west, intersection, South 2nd Ring Road eastwards travel direction describe as example.
1, intersection craspedodrome is demarcated with left and right veer, and lane line is set to regular length solid line and variable solid line, dotted line lane line two parts form, and solid line and dotted line are indicated realization by LED;
2, fixing solid line length arranges length and equals to keep straight on and the shortest length of left and right veer boundary lane line solid line, and calculating formula is: L min(λ k) for=int
In formula: L minfor keeping straight on and the shortest length of left and right veer boundary lane line solid line, number of track-lines k=6, is greater than coefficient lambda=5 meter of equivalent length of wagon, L min=30 meters;
Variable solid line maximum length equals to keep straight on and deducts regular length solid line with the maximum length of left and right veer boundary lane line solid line length is set, and keeping straight on the maximum length calculating formula of left and right veer boundary lane line solid line is: L max(η k) for=int
In formula: L maxfor craspedodrome and the maximum length of left and right veer boundary lane line solid line, number of track-lines k=6, η is coefficient η=10 meter of 2 times of equivalent lengths of wagon, L max=60 meters, keep straight on and left and right veer boundary lane line variable part L max-L min=30 meters;
3, change trains or buses to divide separately or left and right queue length of changing trains or buses reaches and assert that the left and right diatom of changing trains or buses arranges separately when saturation length 70% left and right; Assert that saturation length determines according to the actual conditions at each crossing, for example, be taken as the length that 2-3 signal period could pass through; Change trains or buses to divide or turn left to keep straight on, turn right and keep straight on and left and right queue length of changing trains or buses is not enough while assert saturation length 60% when left and right, can left turn lane be set with ground electronic route sign and be arranged to craspedodrome road, the right-turn lane craspedodrome road that is set to turn right, meanwhile, keep straight on and be set to left and right veer boundary lane line solid line length L
Minimum fixing solid line length

Claims (1)

1. an intersection changeable driveway identification method, is characterized in that comprising the following steps:
Keep straight in step 1, intersection and left and right veer boundary lane line is set to regular length solid line and variable solid line, dotted line lane line two parts form, and solid line and dotted line are indicated realization by LED;
Step 2, fixing solid line length arrange length and equal to keep straight on and the shortest length of left and right veer boundary lane line solid line, and calculating formula is: L min(λ k) for=int
In formula, L minfor craspedodrome and the shortest length of left and right veer boundary lane line solid line, k is number of track-lines, and λ is the coefficient that is greater than equivalent length of wagon, and int is for rounding symbol;
Step 3, variable solid line maximum length equal to keep straight on and deduct regular length solid line with the maximum length of left and right veer boundary lane line solid line length is set, and keeping straight on the maximum length calculating formula of left and right veer boundary lane line solid line is: L max(η k) for=int
In formula, L maxfor craspedodrome and the maximum length of left and right veer boundary lane line solid line, k is number of track-lines, and η is the coefficient that is greater than the doubly above equivalent length of wagon of m, and int is for rounding symbol; Keep straight on and left and right veer boundary lane line variable part=L max-L min;
Step 4, change trains or buses to divide separately or left and right queue length of changing trains or buses reaches while assert saturation length a% left and right, the left and right diatom of changing trains or buses arranges separately; Assert that saturation length is taken as the length that 2-3 signal period pass through; Change trains or buses to divide or turn left to keep straight on, turn right and keep straight on and left and right queue length of changing trains or buses is not enough while assert saturation length b% when left and right, with ground electronic route sign, left turn lane is set and is arranged to craspedodrome road, the right-turn lane craspedodrome road that is set to turn right, meanwhile, keep straight on and be set to left and right veer boundary lane line solid line length L:
Fixing solid line length L min<L< fixes solid line length L min+ (1-a%) variable solid line length doubly, wherein, a, b are positive number, according to road conditions and experience setting.
CN201210308659.4A 2012-08-27 2012-08-27 Control method of junction reversible lane marks and lane line lengths Active CN102787569B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103258436B (en) * 2013-05-21 2015-04-08 东南大学 Method for determining length of variable guide lane for signal control intersection approach
CN105279979A (en) * 2015-10-15 2016-01-27 华南理工大学 Variable lane driving direction switching method based on vehicle position on tracking lane
CN111768613B (en) * 2019-03-12 2021-11-09 北京嘀嘀无限科技发展有限公司 Road function change determining method and device
CN111339590B (en) * 2020-02-25 2020-10-20 四川警察学院 Intersection straight-going waiting area setting method considering environmental influence
CN111968370B (en) * 2020-08-18 2022-02-22 南京慧尔视智能科技有限公司 Intelligent variable lane sensing system and method for microwave radar

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Publication number Priority date Publication date Assignee Title
JP2005240531A (en) * 2004-02-28 2005-09-08 Shogo Tsuchida Final brake-point indicating line
KR20070106184A (en) * 2006-04-28 2007-11-01 주식회사 에스컨자인 Intersection structure and signal control method for effective allocation of car signal time
CN101650877A (en) * 2009-08-31 2010-02-17 吉林大学 Method for setting crossing self-adapting changeable driveway
CN101845781A (en) * 2009-03-27 2010-09-29 曲瑞鹏 Multi-road combined real-time variable lane group system
CN101901547A (en) * 2010-07-21 2010-12-01 浙江工业大学 Adaptive control method for variable lane
CN202359517U (en) * 2011-12-16 2012-08-01 浙江富阳市新源交通电子有限公司 Light-emitting diode (LED) type light-emitting changeable guide lane sign on road

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005240531A (en) * 2004-02-28 2005-09-08 Shogo Tsuchida Final brake-point indicating line
KR20070106184A (en) * 2006-04-28 2007-11-01 주식회사 에스컨자인 Intersection structure and signal control method for effective allocation of car signal time
CN101845781A (en) * 2009-03-27 2010-09-29 曲瑞鹏 Multi-road combined real-time variable lane group system
CN101650877A (en) * 2009-08-31 2010-02-17 吉林大学 Method for setting crossing self-adapting changeable driveway
CN101901547A (en) * 2010-07-21 2010-12-01 浙江工业大学 Adaptive control method for variable lane
CN202359517U (en) * 2011-12-16 2012-08-01 浙江富阳市新源交通电子有限公司 Light-emitting diode (LED) type light-emitting changeable guide lane sign on road

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