Control method and apparatus for traffic bottleneck

A control device and bottleneck technology, which is applied in the direction of traffic signal control, can solve problems affecting transportation efficiency, and achieve the effect of avoiding traffic fluctuations, strong self-recovery ability, and rapid application

Active Publication Date: 2009-01-14
INST OF PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, the flow in the bottleneck area always fluctuates between the state of large flow and the state of small flow (blocking state), which seriously affects the transportation efficienc

Method used

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  • Control method and apparatus for traffic bottleneck
  • Control method and apparatus for traffic bottleneck
  • Control method and apparatus for traffic bottleneck

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[0033] Example

[0034] The present invention will be described in detail below in conjunction with embodiments.

[0035]figure 1 The most typical embodiment of the present invention is shown, which is a schematic diagram of using the control device of the present invention at the bottleneck of a two-lane road into a single-lane road. This type of road frequently appears in areas where branch roads merge into the dominant area, such as the area where Beijing City merges from Xizhimen North Street to West Second Ring Road. In addition, when a two-way road is blocked after an accident somewhere, it will also form such a bottleneck. Among them, the control device for increasing the throughput of vehicles at the traffic bottleneck of the present invention includes: vehicle passing detectors and their corresponding counters respectively arranged at the exit of the bottleneck and the entrance of the buffer zone, and each detector detects that there is a vehicle. After passing, signals ...

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Abstract

The invention discloses a controlling method for improving vehicle flow in a traffic bottleneck location. The controlling method includes the steps of arranging a buffer area, limiting the driving rule of vehicles in the buffer area and controlling the number of the vehicles in the buffer area. Due to the control of the number of the vehicles, a feedback mechanism is automatically introduced, and the self recovering capability of the system is strengthened. Therefore, the controlled vehicle flow can be kept at a fixed value for a long time, and flow fluctuation caused by an entrance-ramp controlling method is avoided. The controlling method of the invention is clarified without manmade interference. The invention also provides a controlling device for realizing the controlling method.

Description

technical field [0001] The invention belongs to the field of traffic control, and in particular relates to a control method and a control device for increasing vehicle throughput at traffic bottlenecks. Background technique [0002] Traffic bottleneck problem is one of the most important problems restricting traffic flow, and it appears very frequently in urban traffic. Some traffic bottlenecks come from insufficient hardware facilities, such as overpass entrances, several roads merge into one road, etc. Also some are caused by emergencies, for example, an accident occurs on multiple highways, so that one or two of the original multiple highways must be blocked, and at this time, a bottleneck is formed at this place. Bottlenecks are particularly prone to traffic jams, and the jamming phenomenon will propagate backwards from the bottleneck, causing a wider range of traffic jams. Therefore, these traffic bottlenecks must be dealt with emphatically, otherwise it will greatly ...

Claims

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Application Information

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IPC IPC(8): G08G1/08
Inventor 孙刚彭子晖
Owner INST OF PHYSICS - CHINESE ACAD OF SCI
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