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An urban road maintenance strategy optimization method based on main body simulation

A technology of road maintenance and optimization method, which is applied in the direction of constraint-based CAD, design optimization/simulation, prediction, etc., can solve the problems of travelers’ travel impact, aggravate urban traffic congestion, and occupy road resources, so as to reduce travel costs and improve Travel satisfaction and the effect of improving service levels

Inactive Publication Date: 2019-01-25
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

[0003] However, urban road maintenance and traffic travel are a pair of natural contradictions. Road maintenance often occupies road resources and affects the travel of travelers.
Unreasonable road maintenance strategies will take up too much road resources and aggravate urban traffic congestion
The existing road maintenance technology mostly stays at the level of road maintenance construction, ignoring the impact of road maintenance on the urban traffic system
At the same time, travelers at this stage cannot guarantee to have complete road information, and it is difficult to obtain the real impact of road maintenance strategies on traffic travel through traditional traffic allocation methods based on user balance theory

Method used

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  • An urban road maintenance strategy optimization method based on main body simulation
  • An urban road maintenance strategy optimization method based on main body simulation
  • An urban road maintenance strategy optimization method based on main body simulation

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Embodiment Construction

[0011] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0012] Such as figure 1 Shown, the present invention comprises the following steps:

[0013] 1) Determine the time schedule of road maintenance, form a road maintenance strategy that meets the quality and time requirements of road maintenance, and build an upper model for road maintenance strategy optimization. The main process is as follows:

[0014] A. Establish optimization goals

[0015] The goal of road maintenance optimization is to find the minimum value of the sum of travel time cost and road section maintenance cost, then the objective function is set as:

[0016]

[0017] Among them, v t is the traveler’s average time cost, x dijk is a 0-1 variable indicating whether vehicle k passed the road segment (i, j) on day d, t dijk and w dijk Respectively, on day d, the travel time and waiting time of vehicle k passing through the road section (i, j), c u...

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Abstract

The invention discloses an urban road maintenance strategy optimization method based on main body simulation, which aims at solving the problem of scheme design of road maintenance strategy and determining an optimal scheme of road maintenance strategy. According to the quality requirements and time requirements of road maintenance, the road maintenance scheme is formed. Then, based on the ascertained road maintenance scheme, the agent-based simulation assignment of the traffic flow of the traffic system is carried out, and the travel cost is calculated according to the assignment result, andthe road maintenance scheme is formed by returning, and the optimal scheme of the road maintenance strategy is determined through the mutual iteration in this way. The optimization method provided bythe invention carries out the overall design and optimization of the whole road network maintenance strategy from the perspective of the traffic system, and improves the service level of the road maintenance.

Description

technical field [0001] The invention relates to an optimization method for an urban road maintenance strategy, in particular to an optimization method for an urban road maintenance strategy based on subject simulation. Background technique [0002] The demand for transportation and the increase in the number of private cars have greatly increased the pressure on the urban road network. Due to the influence of road load, climate and other environmental factors, the condition of the road surface is always damaged to varying degrees, and the integrity of the road function is also destroyed. In order to ensure the safe and normal use of roads, road managers must carry out large-scale maintenance of road surfaces. [0003] However, urban road maintenance and traffic travel are a pair of natural contradictions. Road maintenance often occupies road resources and affects the travel of travelers. Unreasonable road maintenance strategies will occupy too much road resources and aggra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06Q10/04G06Q50/26
CPCG06F30/20G06F2111/04G06Q10/04G06Q50/26
Inventor 于滨郭震吴恩泽郝梦妍
Owner BEIHANG UNIV
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