Traffic safety risk field construction method based on WIM data

A traffic safety and construction method technology, applied in the field of traffic safety risk field construction based on WIM data, can solve the problem that the parameter error is only ±3%, achieve strong practicability and accuracy, bridge structural mechanics analysis and traffic safety Risk assessment promotes and improves the effect of traffic flow theory and traffic simulation modeling

Active Publication Date: 2018-09-25
TONGJI UNIV
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Weigh-In-Motion (WIM) system, which has been widely used in recent years, can accurately measure vehicle information including its vehicle weight, axle load, vehicle length, wheelbase, vehicle speed, etc., as well as vehicle time

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Traffic safety risk field construction method based on WIM data
  • Traffic safety risk field construction method based on WIM data
  • Traffic safety risk field construction method based on WIM data

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0044] Example

[0045] Such as figure 1 As shown, this embodiment proposes a method for constructing a traffic safety risk field based on WIM data, which specifically includes the following steps:

[0046] 1) Analyze the traffic flow laws and traffic behaviors of different axles based on the measured WIM data, and construct a cellular automata traffic simulation model that considers the load characteristics, which specifically includes the following steps:

[0047] 11) Divide the vehicle types into axle types, and use the measured WIM data to analyze the temporal and spatial laws and traffic behavior of axle-type vehicle traffic flow elements (including vehicle speed, traffic volume, and traffic composition);

[0048] 22) Using measured WIM data to determine the traffic operation law of axle vehicles, combined with the characteristics of car following and lane changing, establish a cellular automata simulation model for the road object being studied.

[0049] 2) In order to analyze the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a traffic safety risk field construction method based on WIM data. The method comprises the steps that the traffic flow law and traffic behavior of different axle vehicles areanalyzed based on measured WIM data, and a cellular automaton traffic simulation model considering load characteristics is constructed; potential collision energy is used as an indicator to measure risk consequences, and a traffic safety risk assessment indicator set is established; a traffic safety space-time dimension risk field model is established; and finally traffic safety risk level assessment based on the WIM data is realized. Compared with the prior art, the method provided by the invention considers the influence of load characteristics on traffic safety, realizes the visualizationof the space-time dimension of traffic risks, provides a new theory and a new method for traffic safety risk assessment and active safety control, and provides a theoretical basis and technical support for dynamic assessment and early warning of traffic safety risks of express ways, high-risk roads, and particularly bridges, tunnels and other key transportation infrastructures.

Description

technical field [0001] The invention relates to the field of highway traffic safety risk assessment and management, in particular to a method for constructing a traffic safety risk field based on WIM data. Background technique [0002] With the growth of my country's road transportation demand, the development of expressways is advancing by leaps and bounds. The development of expressways shortens the space-time distance between provinces and cities, speeds up the exchange of people and goods between regions, reduces production and transportation costs, and promotes national economic development and social progress. At the same time, the greater demand for road transportation also makes heavy-load vehicles (such as large and extra-large freight vehicles) gradually occupy a greater share of expressway traffic, which has a certain impact on expressway operation and maintenance and traffic safety. Load characteristics are an important attribute of traffic flow, which not only ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G08G1/01G06F17/50
CPCG08G1/0137G06F30/20
Inventor 涂辉招李浩王颖孙立军何青俊
Owner TONGJI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap