Multilevel road network traffic speed control method

Abstract

The invention provides a multilevel road network traffic speed control method which comprises the following steps of: dividing a target road network required to be managed into road segments according to design speed; acquiring the design speed vi and the traffic flow qi of a target road segment xi; and constructing a traffic efficiency function, solving vehicle optimal speed corresponding to a maximum traffic efficiency value according to the traffic efficiency function, and controlling the speed v within a vehicle optimal speed range. The method can take account of traffic speed and traffic efficiency to determine the optimal vehicle driving speed and to perform corresponding control, thereby ensuring that respective road segments in the multilevel road network are in the optimal traffic efficiency range, and being beneficial to the improvement of urban road traffic conditions.

Description

technical field [0001] The invention relates to the field of traffic control, in particular to a multi-stage road network traffic speed control method. Background technique [0002] With the development of society, road traffic plays an extremely important role. However, in modern society, the number of cars is gradually increasing, which puts great pressure on the road network and even causes congestion. It has also become a worldwide problem in modern society. [0003] In the prior art, the following measures are generally taken to relieve the pressure of road traffic: First, the method of increasing the road network, that is, building new roads, is costly and difficult in real time, and cannot effectively solve the problem of urban congestion. The second problem is that it is carried out through traffic control, which is also the main means at present. However, in the control methods in the prior art, it is difficult to achieve both traffic efficiency and traffic speed, ...

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Problems solved by technology

[0003] In the prior art, the following measures are generally taken to relieve the pressure of road traffic: First, the method of increasing the road network, that is, building new roads, is costly and difficult in real time, and cannot effectively solve the problem of urban congestion. The second problem is that it is carried out through traffic control, which is also the main means at present. However, in the control methods in the prior art, it is difficult to achieve both traffic efficiency and traffic speed, and it is difficult to achieve effective coordination of road network traffic.

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