A priority traffic method for trams based on flow-aware coordinated control
A tram and coordinated control technology, applied in traffic flow detection, traffic control system, traffic control system of road vehicles, etc., can solve problems such as difficult coordination of trams and social vehicles, and achieve the effect of improving traffic efficiency
Active Publication Date: 2021-08-17
NANJING LES INFORMATION TECH
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Problems solved by technology
[0005] Aiming at the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a tram priority traffic method based on flow-aware coordinated control, so as to solve the problem that it is difficult to coordinate the traffic of trams and social vehicles in the prior art; the present invention Through reasonable optimization control, trams can be given priority under certain conditions, and combined with flow-aware coordinated control, the interference to social vehicles can be reduced as much as possible
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[0035] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.
[0036] refer to figure 1 As shown, a kind of tram priority traffic method based on traffic perception coordinated control of the present invention, comprises steps as follows:
[0037] 1) Obtain real-time traffic flow data, and adaptively allocate timing coefficients for each phase in the cycle according to the maximum saturation of each phase at the intersection;
[0038] 2) Set the main phase and phase difference of each intersection, measure the weight of each phase, and make it work together with the phase timing coefficient in step 1) to adjust the phase green time and green signal ratio to meet the current phase difference and predicted Set phase difference matching requirements to re...
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The invention discloses a tram priority traffic method based on traffic perception coordinated control, comprising the following steps: acquiring real-time traffic flow data, and adaptively assigning timing coefficients of each phase in a cycle according to the maximum saturation of each phase; setting each phase Weight, combined with the real-time phase timing coefficient to adjust the phase green light time and green signal ratio to meet the requirements of matching the current phase difference and the preset phase difference, and realize the coordinated control of signals at each intersection; when receiving a tram priority request, a dynamic priority is adopted Scheduling strategy, according to the degree of tram delay, conflicting vehicle congestion, coordinated control in place, and the impact of the estimated tram optimization strategy on signal timing, determine whether to respond to the tram priority request; if it responds, execute priority control, otherwise Execute the current signal timing. The invention combines flow perception coordinated control with tram priority control, not only ensures that trams enjoy intersection priority, but also improves the traffic efficiency of social vehicles.
Description
technical field [0001] The invention belongs to the field of urban road traffic control, and specifically refers to a tram priority traffic method based on traffic perception coordinated control. Background technique [0002] Tram, as a kind of green, environment-friendly and efficient public transportation in the field of rail transportation, has more and more demand in urban road transportation. Trams are not completely independent of social vehicles. The traditional intersection signal control system will reduce the operating efficiency of trams to a large extent. key research directions. Both passive priority and active priority control methods aim to improve the operating efficiency of trams. [0003] Most of the existing tram priority systems blindly pursue the priority release efficiency of trams, which will inevitably affect the normal release of social vehicles. Taking into account the traffic efficiency of trams and social vehicles requires a compromise method. ...
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IPC IPC(8): G08G1/01G08G1/087
CPCG08G1/0104G08G1/087
Inventor 葛青严璐徐祥鹏彭程王越施洋
Owner NANJING LES INFORMATION TECH