Expressway network operation situation on-line deduction thermal startup technique

A technology of expressway network and operation situation, which is applied in the traffic control system, traffic flow detection, and instruments of road vehicles, which can solve the problems of hot start that cannot be simulated and deduced, and achieve real-time operation monitoring and reduce warm-up time Effect

Inactive Publication Date: 2017-05-31
RES INST OF HIGHWAY MINIST OF TRANSPORT
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AI Technical Summary

Problems solved by technology

That is, how to quickly load the hot start technology at the beginning of the simulation to meet the needs of the road network operation manager for rapid evaluation and prediction of real-time operation. Currently, the existing technology is considering the dynamic update of real-time data and the dynamic input of

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  • Expressway network operation situation on-line deduction thermal startup technique
  • Expressway network operation situation on-line deduction thermal startup technique

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Embodiment Construction

[0012] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings, so as to make the technical solution of the present invention easier to understand and grasp.

[0013] Such as figure 1 As shown, the process of online deduction model of road network operation status based on hot start technology:

[0014] The process of online deduction model of road network operation situation based on hot start technology is as follows, including several parts such as simulation operation control file, scene change control file, data loading, simulation operation, simulation result file output and storage.

[0015] The detailed process of deduction based on the hot start technology line is as follows:

[0016] 1) Set the simulation operation control file, set the relevant parameters in the simulation deduction process, including a series of simulation control files such as real-time input file monitoring and ex...

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Abstract

The invention discloses an expressway network operation situation on-line deduction thermal startup technique, which comprises the following content: constructing an expressway network operation situation on-line deduction model based on thermal startup technique, comprising component modules of the expressway network operation situation on-line deduction model, and traffic demand estimation and prediction, consistency check, expressway network structure traffic capacity time-varying information, mesoscopic traffic simulation engine, deduction real-time data archiving, archived data loading, deduction real-time road network operation parameter output and dispatching modules; outputting and keeping data in the expressway network operation situation deduction process; and reading a real-time data file from other data sources. The expressway network operation situation on-line deduction thermal startup technique realizes on-line rapid simulation deduction, and finishes analysis of on-line expressway network operation situations and carries out prediction and deduction on future development situations of an expressway network, thereby providing quick technical and data support for emergency disposal decision for traffic managers.

Description

technical field [0001] The invention relates to a hot start technology for online deduction of expressway network operation situation. Background technique [0002] The operation situation deduction of the expressway network mainly predicts and evaluates the change trend of the operation state of the road network through the method of simulation deduction, and shows the spatio-temporal development process of the operation state of the road network. The current road network operation situation deduction simulation research is mostly based on historical data using mathematical methods to predict and calculate, and then input it into the simulation system to predict the development of the situation. The simulation process requires a longer loading warm-up time. In the case of a large-scale road network, the simulation requires a longer loading warm-up time to ensure that the time period used for analysis is not much different from the actual situation. In addition, in most cur...

Claims

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Application Information

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IPC IPC(8): G08G1/01
CPCG08G1/0125
Inventor 张纪升张凡周学松牛树云孙晓亮刘见平李宏海张利朱丽丽赵丽崔玮张金金王华王体彬
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
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