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Method for coordinating and optimizing traffic zones

A traffic community, coordinated optimization technology, applied in traffic control systems, traffic flow detection, road vehicle traffic control systems, etc., can solve the problems of lack of verification and lack of integrity of the model, and achieve the effect of simplifying the urban traffic road network

Active Publication Date: 2017-03-15
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

However, the model does not verify whether the game between a sub-region and the second adjacent sub-region affects the results of the previous game, so the model lacks integrity

Method used

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  • Method for coordinating and optimizing traffic zones
  • Method for coordinating and optimizing traffic zones
  • Method for coordinating and optimizing traffic zones

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Embodiment Construction

[0075] The present invention will be further described below in conjunction with specific examples.

[0076] Such as Figure 19 As shown, the coordinated optimization method of the traffic area of ​​the present invention comprises the following steps:

[0077] 1) Determine the scope of the urban road network to be studied, and obtain basic data, including the traffic capacity of all roads within the research area, the average hourly traffic generation within the research area, the ratio of the number of vehicles arriving at the destination to the number of vehicles leaving the road network, etc.

[0078] 2) Divide the entire traffic network into several traffic control districts, take the districts as the network traffic flow optimization object, and simplify the urban traffic road network studied.

[0079] 3) Constructing a directed graph for network optimization: with communities as nodes, roads between the communities are represented by edges, and the road network is abstr...

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Abstract

The present invention discloses a method for coordinating and optimizing traffic zones. The method comprises the steps of dividing a whole traffic network into a plurality of traffic control zones; adopting traffic zones as network traffic flow optimization objects to simplify the studied urban traffic network; adopting zones as nodes and roads among the zones as edges, and abstracting the traffic network as a network layer formed by the nodes and the edges; establishing a regional macroscopic fundamental diagram that meets all the requirements of the above method, and a macroscopic fundamental diagram of each traffic zone. According to the technical scheme of the invention, the overall operating efficiency of the traffic network is adopted as a target, and the traffic flows among all the zones are adopted as decision variables. Meanwhile, the traffic capacity of roads among the zones is adopted as a constraint condition to construct a network optimization model. The data of the traffic operation state of the traffic network are adopted as the parameters of the network optimization model and the optimal flow among the zones in the current state is figured out. Therefore, the traffic flow in the congestion area is coordinated and eased, and the overall operating efficiency of the network is improved.

Description

technical field [0001] The invention relates to the technical field of regional traffic optimization, in particular to a coordination and optimization method for a traffic area. Background technique [0002] With the current rapid development of urban motorization, the road system is gradually becoming saturated, and the traffic operation has "touched the whole body", and regional traffic problems have become increasingly prominent. Therefore, for traffic management and services, it is also necessary to maintain a holistic view, proceeding from the overall situation of the entire road network, and solve local traffic bottlenecks from a macro perspective. [0003] For the road network system, the traditional research methods for intersections and road sections are not fully suitable, and macroscopic traffic theories and methods based on the overall network are needed. The macroscopic basic map of traffic flow is a macroscopic model that can describe the traffic flow state of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G06Q10/04
CPCG06Q10/04G08G1/0145
Inventor 马莹莹吕瑶璐徐建闽
Owner SOUTH CHINA UNIV OF TECH
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