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Urban traffic network optimization method and system

A technology of urban road network and optimization method, which is applied to the traffic control system of road vehicles, traffic control systems, instruments, etc., can solve problems such as the traffic flow of urban residents without consideration, and achieve reasonable and accurate results

Inactive Publication Date: 2014-08-20
SHENZHEN INST OF ADVANCED TECH
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Problems solved by technology

[0005] The traditional non-linear coefficient is a static index, which does not consider the traffic flow generated during the travel of urban residents

Method used

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  • Urban traffic network optimization method and system
  • Urban traffic network optimization method and system

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] refer to figure 1 Shown is a flow chart of a preferred embodiment of the urban road network optimization method of the present invention.

[0022] Step S401, preprocessing the floating car data and road network data. The preprocessing includes: eliminating abnormal floating car data that does not conform to the actual situation and excessive noise, and effectively storing the road network data. in particular:

[0023] The abnormal floating car data refers to that when the floating car is running, the shielding of the surrounding buildings has a very large impact on the signal sent by the vehicle GPS (Global Positioning System, Global Positioning System) equipment, causing the data received or transmitted by the GPS equipment to be different from the data received by the GPS equipment. Actual values ​​vary greatly, even when ...

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Abstract

The invention relates to an urban traffic network optimization method. The method comprises the following steps that floating car data and traffic network data are preprocessed; the preprocessed floating car data are matched with a traffic network map; traffic flow of floating cars at all road sections in a certain period of time is counted; a modified nonlinear coefficient is calculated according to the counted traffic flow, and the urban traffic network is optimized. The invention further relates to an urban traffic network optimization system. According to the method and the device, reference is provided for determining whether side roads are designed for the road sections with heavy traffic and how to design the side roads, and a reference index which is more accurate and has more practical significance can be provided for reasonability of overall planning of the urban traffic network.

Description

technical field [0001] The invention relates to an urban road network optimization method and system. Background technique [0002] Urban road network (referred to as "urban road network") is the context of urban traffic, and it is also an important part of urban traffic and even the entire urban system. The layout of urban road network is an important factor affecting urban development and urban traffic, directly affecting the entire Efficient functioning of urban systems. In today's society, large and medium-sized cities often face problems such as traffic congestion, traffic accidents and the resulting environmental pollution, which to a certain extent restrict the development of urban society and the improvement of economic levels. [0003] Whether it is a developed country or a developing country, they are constantly exploring countermeasures to solve urban traffic problems. An important aspect of solving urban traffic problems is to make the urban road network layout...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/00
Inventor 陈会娟钱静刘萍张弘弢郑茂恭
Owner SHENZHEN INST OF ADVANCED TECH
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