A Traffic Event-Oriented Evaluation Method for Expressway Traffic Control Effect

Abstract

The invention discloses a traffic event-oriented highway traffic control effect evaluation method, and belongs to the technical field of traffic management and control. The method comprises the stepsof: 1, collecting traffic event information, historical traffic operation information, road basic information and traffic management and control mode information; 2, discretizing time points, and collecting traffic data after an event occurs; 3, utilizing VISSIM software to predict evolution of the traffic operation state after the event occurs under the condition of no control, and calculating anevaluation index; 4, determining an event influence range under a control condition according to an improved input and output model, and calculating the evaluation index; 5, comparing the index difference to obtain an evaluation result; and 6, finally determining the weight of traffic facilities, and calculating the service level index of the traffic system. According to the method, the traffic control effect is completely evaluated through calculation of the lifting indexes of the facilities influenced by traffic control and calculation of the comprehensive traffic system indexes.

Description

technical field [0001] The invention relates to a method for evaluating the traffic control effect of expressways oriented to traffic events, and belongs to the technical field of traffic management and control. Background technique [0002] With the rapid increase of the number of motor vehicles, traffic management departments meet the growing traffic demand through large-scale construction of road facilities. However, excessive traffic flow will also make various traffic incidents more likely to occur, resulting in traffic congestion and a decline in road service levels. In the face of these incidents, the traffic management department often adopts control measures to alleviate these problems. For expressways, local control measures for traffic incident sections will have an impact on the traffic status of the upstream and downstream sections and ramps of the expressway. Selecting appropriate indicators to evaluate these effects has certain theoretical and practical sign...

AI Technical Summary

Problems solved by technology

This method does not determine the scope of influence of the control plan during the evaluation, nor does it give a comprehensive evaluation result

This method is aimed at evaluating local traffic, and cannot take into account the entire traffic system affected; it does not take into account the scope of influence of traffic incidents; it uses simulation methods completely, making the evaluation indicators completely dependent on simulation, and it is difficult for some control methods When implemented by simulation, the index value after traffic control cannot be obtained

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