Dangerous goods transportation path planning method under uncertain time-varying road network

A dangerous goods transportation and path planning technology, applied in road network navigators, road vehicle traffic control systems, instruments, etc., can solve problems such as inaccurate evaluation model analysis

Pending Publication Date: 2021-09-14
HANGZHOU DIANZI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: the current dangerous goods risk assessment model generally considers the time-varying nature and uncertainty of the road network alone, which leads to the inaccurate technical problem of the assessment model analysis

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  • Dangerous goods transportation path planning method under uncertain time-varying road network
  • Dangerous goods transportation path planning method under uncertain time-varying road network
  • Dangerous goods transportation path planning method under uncertain time-varying road network

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Embodiment Construction

[0081] The specific embodiments of the present invention will be further specifically described below through specific embodiments in conjunction with the accompanying drawings.

[0082] A dangerous goods transportation route planning method under uncertain time-varying road network, such as figure 1 , figure 2 shown, including the following steps:

[0083] S1: Obtain real-time traffic conditions and urban population density information; the real-time traffic conditions and urban population density information acquired in step S1 include real-time traffic index of urban roads, historical data of traffic index and real-time urban population heat map. Through the collection of real-time road conditions and urban population density information, including real-time traffic index of urban roads, historical data of traffic index and urban real-time population heat map, etc., the preliminary grasp of road conditions and urban population information can be achieved.

[0084] S2: Es...

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Abstract

The invention discloses a dangerous goods transportation path planning method under an uncertain time-varying road network. The method comprises the following steps of establishing a dangerous goods transportation planning model considering time-varying characteristics and uncertainty of road conditions and population density information, introducing time-varying fuzzy variables into the model to describe the influence of the population density on the transportation risk, and meanwhile, considering the influence of the road network real-time traffic condition on the transportation risk, and introducing time-dependent equivalent road length into the model to describe the real-time road condition, performing ambiguity resolution by using an opportunity constraint planning method, and finally, solving a simulation result by applying a PSO algorithm, and verifying the applicability of the model by analyzing a numerical instance solving result. According to the method, a path planning scheme with relatively low road risk can be obtained, and compared with a traditional deterministic model, the method has better applicability.

Description

technical field [0001] The invention relates to the technical field of information and control, in particular to a method for planning dangerous goods transport routes under uncertain time-varying road networks. Background technique [0002] With the rapid development of chemical industry, the transportation of dangerous goods has become more frequent, and the safety issues related to the transportation of dangerous goods have become increasingly prominent. Due to the special nature of dangerous goods, any activity related to its use is accompanied by great risks. During the transportation of hazardous chemicals, even ordinary traffic accidents can easily lead to leakage accidents of hazardous chemicals. Leakage accidents will not only cause huge economic and personnel losses, but also cause long-term and difficult-to-repair damage to the environment. Reasonable route planning can effectively avoid high-risk areas such as traffic congestion and dense population. Therefore,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/0968G01C21/34
CPCG08G1/0125G08G1/0129G08G1/0137G08G1/096833G08G1/096888G01C21/3492G01C21/3446
Inventor 郑松柳枝果葛铭郑小青魏江
Owner HANGZHOU DIANZI UNIV
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