Method for determining length of variable guide lane for signal control intersection approach

A technology of signal control and lane length, which is applied in the direction of traffic signal control and variable traffic indication arrangement, can solve the problems of inconvenient vehicle lane changing, short variable guiding lanes, and chaotic entrance lanes, etc., so as to reduce traffic congestion and The number of traffic accidents and the effect of improving operational efficiency

Inactive Publication Date: 2013-08-21
SOUTHEAST UNIV
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Problems solved by technology

[0005] At present, in the field of traffic planning and design, the requirements for setting the length of the general entrance widening section and gradient section are relatively specific. , the application of relevant standards and specifications often fails to achieve a good setting effect. For the approach road using the variable guiding lane system, setting a reasonable length of the widening section of the entrance road (that is, the length of the variable guiding lane) can make the vehicle enter the intersection smoothly entrance road
[0006] The optimal setting

Method used

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  • Method for determining length of variable guide lane for signal control intersection approach
  • Method for determining length of variable guide lane for signal control intersection approach
  • Method for determining length of variable guide lane for signal control intersection approach

Examples

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Embodiment

[0039] Take the signalized intersection of Moganshan Road and Wenhui Road in Hangzhou as an example, see the attached Figure 4 . The cycle time of this intersection is 190s. There are 4 lanes at the south entrance road, which are a dedicated left-turn lane, a variable steering lane, a through lane and a right-turn lane, and the queuing length of the left-turn lane and the through lane often occurs A noticeable imbalance, the variable directional lane steering function adjusts between turning left and going straight.

[0040] The steps to determine the length of the variable guide lane line at the south entrance of the signal control intersection are as follows:

[0041] (1) This article uses the actual survey as the calculation basis. Of course, the relevant design departments can obtain historical data, so the historical data can be used as the calculation basis. The first survey point is 120 meters away from the stop line on the entrance road. The peak of the frequency of...

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Abstract

The invention belongs to the field of road traffic sign marked lines, and discloses a method for determining the length of a variable guide lane for a signal control intersection approach. The method comprises the steps of first acquiring traffic data information that the variable guide lane steers in a corresponding direction, then converting obtained traffic volume relevant to a variable guide lane steering lane into an equivalent standard small automobile traffic volume, further utilizing an M/M/N model in the queuing theory to calculate the number of queuing vehicles behind a stop line of the signal control intersection approach according to a multi-path queuing multi-channel system and with combination of an approach lane queuing imbalance coefficient, and lastly converting the vehicle number into vehicle average queuing length in meter to serve as a value of the length of the variable guide lane for the signal control intersection approach. The method for determining the length of the variable guide lane for the signal control intersection approach can enable the vehicles on the upper stream of the variable guide lane to be smoothly driven into the intersection approach so as to improve approach traffic efficiency.

Description

technical field [0001] The invention relates to the field of road traffic signs and markings in traffic engineering, in particular to a method for determining the length of an entrance road using a variable guiding lane. Background technique [0002] In order to standardize and improve the traffic efficiency of signalized intersections, a common practice is to clearly fix the direction of travel of left turn, straight ahead or right turn for each lane at the entrance of the intersection. However, due to the random arrival characteristics of the traffic flow, in some time periods, the traffic flow of a certain turn of the entrance road is far more than that of other directions, resulting in a large number of vehicles queuing and delays in a specific direction, and a waste of traffic in other directions. The power is not conducive to the full utilization of the overall time and space resources of the intersection. [0003] Variable directional lane means that the driving dire...

Claims

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Application Information

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IPC IPC(8): G08G1/08G08G1/09
Inventor 陈峻周洋顾姗姗陈亚维
Owner SOUTHEAST UNIV
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