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Urban road traffic safety analysis and management technology based on accident data
Based on accident data, intelligent analysis and prediction can improve urban traffic safety management.
Type
Management system
Tags
Transportation safety engineering
Ecological security supervision
Identification of accident-prone facilities
Accident prediction model
Analytical management technology
Intelligent positioning
Accident location description
Applicable industry
Scientific research and technology services
Applications
Transportation
Key innovations
The innovation of this green technology lies in that it has established semantic specifications for traffic accident locations, achieved intelligent positioning, and increased the accuracy rate to 98.2%. For the first time in China, traffic accident prediction models and influencing factor systems for various road facilities have been systematically built for megacities.
Potential economic benefits
By reducing traffic accidents, this technology product can significantly reduce casualties, property losses and traffic congestion costs, improve traffic management efficiency, save police resources, and achieve considerable economic benefits.
Potential climate benefits
By reducing traffic accidents and optimizing traffic management, traffic congestion is reduced and vehicle operating efficiency is improved, thereby reducing fuel consumption and carbon emissions.
Solution supplier
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Tongji University
Tongji University
Tongji University: The national "double first-class" construction university uses advantageous disciplines such as civil engineering, architecture, transportation, and environment to cultivate innovative talents to serve national construction and sustainable urban development.
Shanghai，China
Solution details
  1. Background
    With the development of urbanization and motorization, road traffic accidents have caused serious casualties and social losses, and a large number of traffic accidents have also brought great challenges to traffic police to maintain traffic safety. Relying on projects such as "Shanghai City World Expo Road Traffic Accident Analysis and Early Warning System", the National Natural Science Foundation of China "Research on Accident Cause Analysis and Safety Evaluation Methods at Traffic Signal Controlled Intersections", and "Revision of Road Name Specifications and Optimization and Demonstration Application of Accident Data Collection and Records", the project builds and demonstrates an urban road traffic safety analysis and management technology based on accident data based on Shanghai City. In 2014, People's Daily reported on this.
  2. Main content and innovation points
  3. A semantic expression standard for illegal locations of traffic accidents has been established and intelligent positioning of traffic accidents has been realized.
    Innovation points:
    (1) Based on the characteristics of traffic accident recording, the road network in Shanghai City is divided into five categories of road facilities and thirty categories of accident locations, and a unified "five elements" are proposed to record illegal accident locations;
    (2) Based on the reference points of road facilities-accident location-in the semantic representation of traffic accident location, a scientific logical process is established to realize intelligent positioning of traffic accident electronic maps.
  4. A road traffic accident prediction model was established and a traffic accident influencing factor system was constructed.
    Innovation points:
    For the first time in China, traffic accident prediction models for signal-controlled intersections, urban main roads, urban expressways, suburban main roads, and highway facilities have been established for megacity systems. The causes of accidents have been analyzed from three aspects: road geometric design, traffic control, and traffic operation. A system of influencing factors for traffic accidents in different types of facilities has been established.
  5. Establish standards and methods for identifying accident-prone facilities.
    Innovation points:
    For the first time in China, a method for improving safety has been proposed to systematically identify accident-prone sections (intersections) of various road facilities in megacities, and propose different evaluation standards for different facilities according to accident types and severity. The problem of empirically identifying accident-prone road sections (intersections) is solved.
  6. Developed an urban road traffic accident analysis and management system based on WebGIS.
    Innovation points:
    Based on WebGIS, complex road networks are classified and decomposed into intersections, road sections, and areas. Road traffic accident prediction models and theoretical results of accident-prone facilities are integrated into the system, providing professional solutions for traffic safety analysis and management in megacities.
  7. Results
  8. In 2010, the "Shanghai City Road Traffic Accident Analysis and Early Warning System" was officially launched. As a road traffic accident analysis and management platform for the city, districts and counties of Shanghai City, it has been in use for 5 years. As of 2014, 44 accident-prone road sections have been identified at the municipal level and 60 at the district and county level. Obtained the software copyright "WebGIS Based Road Traffic Accident Analysis System V1.0".
  9. Since 2012, all traffic accidents and illegal records in Shanghai City have applied expression specifications and input controls, and the accuracy rate of traffic accident positioning has increased from less than 50% to 98.2%.
    (1) Form the industry specification "Specification for Special Expression of Names of Duty Enforcement Places for Traffic Police in Shanghai City"(Shanghai Public Transport (Technology)[2013] No. 4)
    (2) Obtained the software copyright "WebGIS Based Traffic Accident Location Entry and Real-Time Location Location Positioning System"
    (3) Registered patent "Automatic Recording and Location Method for Semantic Expression Information of Traffic Accident Locations".
  10. Registered the patent "Method for Processing Traffic Operation Information on Urban Main Roads Based on Floating Car Data".
  11. Published 87 journal and conference papers, 14 SCI journals, 24 EI journals, and 23 international conference papers.
  12. Promotion
    In 2012, this technology was promoted in Guangzhou City by carrying out the work of "Specifications for Special Expression of Traffic Police Duty Enforcement Places","Collection and Maintenance of Basic Information on Traffic Management Roads", and "Comprehensive Analysis System for Illegal Police Situations of Road Traffic Accidents".
    In 2013, Suzhou City learned and applied this technology.
    In 2015, Wuhan City launched the work of "Revision of Road Name Specifications and Optimization of Accident Data Collection and Records" and "Road Traffic Analysis and Early Warning System" to promote this technology.
Last updated
08:26:19, Nov 05, 2025
Information contributed by
Green Technology Bank

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