Workflow-technology-based distributed traffic simulation platform and simulation method

Abstract

The invention discloses a workflow-technology-based distributed traffic simulation platform and a workflow-technology-based distributed traffic simulation method. The simulation platform comprises a user interaction platform layer, an area simulation server group layer, a workflow server layer and a database server layer, wherein the workflow server layer loads a simulated workflow model from the database server layer, then loads global road network data from the database server layer according to the simulated workflow model, generates a global traffic simulation model, and divides the global traffic simulation model into a plurality of area traffic simulation models; each area simulation server loads an area traffic simulation model; the plurality of area simulation server layers realize traffic simulation cyclic operation according to a cyclic structure of the simulated workflow model, guarantee synchronization of the plurality of area simulation servers according to a parallel structure of the simulated workflow model, and realize human and vehicle crossover among simulated areas according to data transfer of the workflow server layers; therefore, a large-scale global road network is simulated.

Description

technical field [0001] The invention belongs to the field of distributed traffic simulation, and specifically relates to workflow technology, database and distributed simulation technology. Background technique [0002] Traffic congestion has become one of the bottlenecks in the development of large cities around the world, and optimal control based on traffic simulation is considered to be an effective method for optimal control of traffic signals. Because it can simulate complex actual traffic conditions, shield the cumbersome mathematical operations, and avoid problems such as safety and inconvenience caused by simulating control schemes in opportunistic traffic systems. Distributed traffic simulation studies how to decompose the large-scale road network simulation on a single computer into multiple small-scale road network collaborative parallel simulations on multiple computers, thereby greatly improving the running speed of the simulation and meeting the requirements o...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of the prior art, the main purpose of the present invention is to provide a distributed traffic simulation platform and method based on workflow technology, to solve the above-mentioned various problems existing in traditional distributed traffic simulation, and to improve the performance of distributed traffic simulation. Flexible, use the workflow management system to realize complex distributed simulation control logic, reduce the difficulty of on-site application, and quickly adapt to the changing needs of urban traffic simulation

Images