Integrated decision support for roadway safety analysis

Jang Hyeon Jo, Jong Sung Lee, Yanfeng Ouyang, Fan Peng

Research output: Contribution to journalArticlepeer-review


This paper presents an integrated decision-support framework that helps public agencies identify high-crash locations and develop cost-effective safety improvement projects. State-of-the-art safety concepts, such as safety performance functions, empirical Bayesian method, and potential for safety improvements, are incorporated to identify hazardous highway locations. Cost-effective safety projects are prioritized based on life-cycle safety benefit evaluation and optimal resource allocation models. An efficient solution algorithm to the optimization model is also proposed. The models are implemented in an internet-based, geographic information system (GIS) software tool that builds on state-of-the-art information technologies, graphical interfaces, and customized GIS algorithms such as spatial analysis with buffering operations.

Original languageEnglish (US)
Pages (from-to)50-56
Number of pages7
JournalJournal of Computing in Civil Engineering
Issue number1
StatePublished - Jan 1 2011


  • Decision support
  • Network screening
  • Resource allocation
  • Roadway safety

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Computer Science Applications

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