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Proceedings Paper

Urban traffic safety analysis and assessment system based on GIS: system design, key techniques and implementation strategy
Author(s): Peijun Du; Jianzhong Pei; Xiaowei Chen; Zhigang Yan
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Paper Abstract

As the most important technical support to digital transportation and intelligent transportation system (ITS), Geographical Information System (GIS) has become an important tool for traffic safety assessment, management and accident prevention. In this paper, the key techniques, system design method and implementation strategy of Traffic Safety Analysis and Assessment System (TSAAS) is investigated based on the integration of GIS and traffic safety models. TSAAS takes road segment as basic units and uses node sets and directed edge sets to describe road network. Event driven spatial data model is adopted to organize information about traffic accidents in order to link accidents with road network data. In order to solve the problem of data storage, Microsoft SQL Server2000 is used as the basic database platform and SuperMap SDX+ large spatial database engine is used. Traffic safety analysis modeling is usually based on many random accident events, and the results are expressed by certain numerical criteria. Taking two typical traffic safety models: black point model and traffic safety assessment model as examples, the integration of traffic models with GIS is explored in detail. Finally the implementation strategy of TSAAS is investigated, and the secondary development scheme based on ComGIS product, SuperMap Objects, is recommended.

Paper Details

Date Published: 5 November 2008
PDF: 9 pages
Proc. SPIE 7144, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: The Built Environment and Its Dynamics, 71442U (5 November 2008); doi: 10.1117/12.812852
Show Author Affiliations
Peijun Du, China Univ. of Mining and Technology (China)
Key Lab. for Special Highway Engineering (China)
Jianzhong Pei, Chang'an Univ. (China)
Key Lab. for Special Highway Engineering (China)
Xiaowei Chen, China Univ. of Mining and Technology (China)
Zhigang Yan, China Univ. of Mining and Technology (China)


Published in SPIE Proceedings Vol. 7144:
Geoinformatics 2008 and Joint Conference on GIS and Built Environment: The Built Environment and Its Dynamics
Lin Liu; Xia Li; Kai Liu; Xinchang Zhang; Xinhao Wang, Editor(s)

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