Calibration method and device for microscopic traffic simulation system in urban expressway interweaving area

Abstract

The invention discloses a calibration method for a microscopic traffic simulation system in an urban expressway interleaving area. The method comprises the following steps: obtaining road basic information of the urban expressway interleaving area; extracting microcosmic vehicle running tracks of the urban expressway interleaving area, and calculating macroscopic traffic flow running characteristics of the urban expressway interleaving area; constructing a traffic flow microscopic simulation model of the urban expressway interweaving area; preliminarily calibrating parameters of the traffic flow microscopic simulation model based on the microscopic vehicle moving trajectory; and adjusting the parameters of the preliminarily calibrated traffic flow microscopic simulation model based on the macroscopic traffic flow operation characteristics. The invention also discloses a calibration device for the microscopic traffic simulation system in the urban expressway interleaving area. The calibration method is beneficial to the more appropriate simulation of the specific driving behavior of each vehicle in the urban expressway interleaving area through the model parameter calibration based on the combination of the microscopic vehicle running track and the macroscopic traffic flow running characteristics of the interleaving area, and the macroscopic operation characteristics of the traffic flow in the interlaced area of the urban expressway are restored microcosmically.

Description

technical field [0001] The invention relates to the technical field of traffic simulation, in particular to a calibration method and device for a micro-traffic simulation system in an urban expressway weaving area. Background technique [0002] With the acceleration of urbanization and the rapid growth of urban population, the number of urban motor vehicles and the demand for travel have risen rapidly, and the contradiction between supply and demand of motorized travel has become increasingly prominent. Most cities in my country are generally facing frequent traffic congestion problems. [0003] Urban expressway, as the main artery connecting various urban groups, often has traffic jams in the node area. Due to the complexity of traffic flow and the particularity of its composition, the weaving area of ​​urban expressway has become one of the main traffic bottlenecks of urban expressway congestion, which greatly restricts the function of the entire urban expressway system. ...

AI Technical Summary

Problems solved by technology

There is a lack of calibration methods and devices for simulation systems that combine macro and micro data for urban expressway weaving areas

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