Method for calculating optimal traffic capacity of road by using optimization model

A capacity and optimization model technology, applied in the field of traffic safety, can solve problems such as large errors and unoptimized optimal capacity

Inactive Publication Date: 2019-12-31
安徽百诚慧通科技股份有限公司
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Problems solved by technology

[0003] However, for the vehicle speed under the maximum flow, because it does not calculate the flow in a continuous time interval, it may happen that ...

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  • Method for calculating optimal traffic capacity of road by using optimization model
  • Method for calculating optimal traffic capacity of road by using optimization model
  • Method for calculating optimal traffic capacity of road by using optimization model

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Embodiment Construction

[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments.

[0017] A method for calculating the optimal traffic capacity of a road using an optimization model in an embodiment of the present invention includes the following steps:

[0018] The continuous driving kilometers of the road are defined as the sum of the driving kilometers of all vehicles on the road in multiple consecutive unit times with the road as the unit;

[0019] Process the passing data of historical road vehicles to obtain the interval time of each vehicle passing through each road section and the time point when it passes through the road...

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Abstract

The invention relates to a method for calculating the optimal traffic capacity of a road by using an optimization model, thereby solving a technical problem that the error of the traditional analysismethod of the optimal traffic capacity of the road is large because the method uses the speed of the maximum traffic capacity as the optimal vehicle speed and does not calculate the flow in a continuous time interval. The method comprises the following steps: for a specific road, calculating vehicle kilometers in a continuous time interval according to actual vehicle passing data; making a formulafor calculating the kilometer number of the vehicle; calculating an optimal solution of the cumulative vehicle kilometers by using a linear programming method; and then carrying out road flow controlaccording to the optimal solution. According to the invention, the concept of vehicle kilometers is introduced according to the actual vehicle passing data of the road and the optimal traffic volumeand traffic speed of the road are calculated by using the optimal solution model. On the basis of combination of the data and theories, the road flow control and vehicle speed limitation can be guidedand the basis can be provided for the urban road network planning and design.

Description

technical field [0001] The invention relates to the technical field of traffic safety, in particular to a method for calculating the optimal traffic capacity of a road by using an optimization model. Background technique [0002] Excavating the optimal traffic capacity and optimal traffic speed of roads, and conducting more refined management of roads are intermediate steps to alleviate road congestion. Under the traditional method, the analysis of the optimal traffic capacity of the road is to use the linear relationship of "vehicle speed - flow", and the speed of the maximum traffic volume is the optimal vehicle speed. [0003] However, for the vehicle speed under the maximum flow, because it does not calculate the flow in a continuous time interval, it may happen that the subsequent vehicle speed is sacrificed under the current flow, resulting in a large error, and the obtained optimal traffic capacity is not optimal. good. Contents of the invention [0004] A method ...

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Application Information

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IPC IPC(8): G08G1/01
CPCG08G1/0104G08G1/0125Y02T10/40
Inventor 刘松朱文佳骆乐乐罗达志陆正云殷书青
Owner 安徽百诚慧通科技股份有限公司
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