Real-time online microscopic traffic simulation method and system

Abstract

The invention discloses a real-time online microscopic traffic simulation method and system. The system comprises a simulation time control module used for controlling various data input and output time nodes in the real-time online simulation process; a traffic generation module used for generating traffic flow corresponding to the real-time traffic data of an external point of a road network ata vehicle input point in a microscopic simulation model according to preset data input and output time nodes, and controlling the speed of a vehicle; a route decision-making module used for calculating the steering proportion of each entrance lane of an intersection according to the real-time traffic data of an internal point of the road network and modifying the relative traffic flow of each route decision-making point in the microscopic simulation model; a signal control matching module used for synchronizing a signal control scheme of an intersection non-networked annunciator; and an outputdisplay module which is used for displaying the simulation result through a visual means. The system can operate autonomously all day long and output the evaluation result in real time, the convenience and timeliness are greatly improved, and the invention is of great significance to road network traffic management and organization optimization.

Description

technical field [0001] The invention relates to a real-time online micro-traffic simulation method and system, belonging to the technical field of intelligent transportation. Background technique [0002] Traffic simulation technology is a means to use computer technology to reproduce the characteristics of the actual traffic system and analyze possible behaviors under complex conditions to find the optimal solution to traffic problems. It is an important way to support traffic planning and management. Compared with offline traffic simulation, the advantage of real-time traffic simulation is that it can reproduce the current road network status and change trends, which is helpful for online monitoring of the road network and timely and effective selection of management and control solutions to improve scientific decision-making capabilities. [0003] Domestic research and development and application of real-time online traffic simulation systems are mainly concentrated on th...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a real-time online micro-traffic simulation method and system, to solve the difficulty in interaction between the real-time road network-level traffic simulation field data and the micro-simulation model in the prior art, and the synchronization is poor, resulting in The technical problem that the traffic simulation output cannot match the actual traffic environment

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