Identification of Factors Affecting the Crash Severity and Safety Countermeasures Toward Safer Work Zone Traffic Management

Seok Min Yoon; Cheol Oh; Hyun Jin Park; Bong Jo Chung

doi:10.7470/jkst.2016.34.4.354

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2016 Vol.34, Issue 4 Preview Page

Identification of Factors Affecting the Crash Severity and Safety Countermeasures Toward Safer Work Zone Traffic Management 공사구간 교통관리특성을 고려한 고속도로 교통사고 심각도 영향요인 분석 및 안전성 증진 방안

August 2016. pp. 354-372

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Abstract

This study identified factors affecting the crash severity at freeway work zones. A nice feature of this study was to take into account the characteristics of work zone traffic management in analyzing traffic safety concerns. In addition to crash records, vehicle detection systems (VDS) data and work zone historical data were used for establishing a dataset to be used for statistical analyses based on an ordered probit model. A total of six safety improvement strategies for freeway work zones, including traffic merging method, guidance information provision, speed management, warning information systems, traffic safety facility, and monitoring of effectiveness for countermeasures, were also proposed.

Keywords

crash severity

ordered probit model

traffic data

work zone

work zone historical data

공사구간에서는 교통류의 안전한 합류 및 통과를 위해 속도관리와 차로차단을 통한 체계적인 교통관리가 요구된다. 본 연구에서는 공사구간 교통관리특성을 교통안전분석에 반영하기 위해서 사고자료, 차량검기지에서 추출된 속도 및 교통자료, 공사 시․종점, 페쇄 차로 등의 정보가 포함된 공사장 이력자료를 활용하였다. 2010년부터 2014년까지 발생한 고속도로 공사구간 사고자료 중 총 231건의 사고에 대해 교통상황자료 및 공사장 이력자료를 매칭시킨 분석 대상 자료셋을 구축하고, 순서형 프로빗 모형을 적용하여 사고 심각도 영향 요인을 도출하였다. 분석결과, 속도, 차로 폐쇄에 따른 용량 감소량, 주의구간 내 사고 위치, 공사 작업 유형의 변수들이 공사구간 사고 심각도에 영향을 미치는 것으로 분석되었다. 분석결과를 바탕으로 6가지 공사구간 안전성 증진 방안을 수립하였다. 안전성 증진방안으로는 차로 합류 및 차단 방안, 주의구간 내 정보 제공 방안, 공사구간 속도 관리 방안, 공사구간 경고 정보 제공 방안, 공사구간 교통안전시설 도입, 공사구간 안전성 효과분석 및 모니터링 방안을 제시하였다.

키워드

사고 심각도

순서형 프로빗 모형

교통자료

공사구간

공사장 이력자료

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Information

Publisher :Korean Society of Transportation
Publisher(Ko) :대한교통학회
Journal Title :Journal of Korean Society of Transportation
Journal Title(Ko) :대한교통학회지
Volume : 34
No :4
Pages :354-372
Received Date : 2016-03-21
Revised Date : 2016-06-08
Accepted Date : 2016-08-11
DOI :https://doi.org/10.7470/jkst.2016.34.4.354

Journal of Korean Society of Transportation ISSN:1229-1366(Print) 2234-4217(Online) 대한교통학회지

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