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A macro-microcosmic combined loop traffic reliability simulation method and system

A simulation method and simulation system technology, applied in the field of road network reliability evaluation, can solve problems such as accuracy restriction of microscopic traffic simulation model

Active Publication Date: 2018-02-23
BEIHANG UNIV
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Problems solved by technology

However, because the microscopic traffic simulation model requires a large amount of data in terms of constructing and analyzing the road network, performing model correction, and model input, the accuracy of the microscopic traffic simulation model is restricted by real data.

Method used

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  • A macro-microcosmic combined loop traffic reliability simulation method and system
  • A macro-microcosmic combined loop traffic reliability simulation method and system
  • A macro-microcosmic combined loop traffic reliability simulation method and system

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Embodiment approach

[0026] 2) The composition of each module and their interrelationships: the micro-vehicle simulation is realized through the micro-traffic simulation software to obtain the traffic flow and speed information in the future under hypothetical conditions; the data information verification and prediction module is embedded in the database to store Historical data and real-time traffic flow information; the road network simulation module obtains the data jointly obtained from the historical data of the microscopic vehicle driving module and the ITS information verification module, and analyzes the regional traffic conditions (including road network congestion, etc.) in the future for a period of time ) to make a prediction, and realize the prediction feedback according to the real-time data adjustment of the information verification module, and obtain a high-accuracy road congestion prediction through dynamic adjustment, measure the reliability of the entire network, and then pass the...

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Abstract

The invention provides a macroscopic view and microscopic view combined circular transportation reliability simulation method and system. The method includes the steps that reliability evaluation of a macroscopic road net layer and a microscopic circular road section is carried out through comprehensive interaction and data mining with the assist of the bottle-neck road section identification and network key node recognition technology; by compositing the ITS technology and a microscopic analogy procedure, on the basis of processing historical data and combining short-time prediction, simulation and evaluation of reliability of road and road network and path in relevant zone are achieved.

Description

technical field [0001] The invention relates to the technical field of road network reliability evaluation, in particular to a method and system for evaluating the reliability of urban road networks combining macro and micro. Background technique [0002] With the continuous development of the road network, among the five evaluation methods for evaluating the reliability of the road network at home and abroad, some of them can only be used to calculate a certain special road network reliability evaluation index, such as the terminal reliability evaluation method and the absorption Marr Cove chain method; some can be used to calculate a variety of road network reliability evaluation indicators, such as game theory technology, Monte Carlo method and micro-traffic simulation method. In addition, for the evaluation of traffic accidents, these methods can also be divided into deterministic methods and non-deterministic methods according to whether the probability of emergency occ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
CPCG08G1/0125
Inventor 鲁光泉王云鹏王馨田大新余贵珍于海洋
Owner BEIHANG UNIV
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