Cause Analysis of Traffic Crashes Black Spots on Highway Long Steep Downgrades In China

Chengwu Jiao
Yubo Hao

Traffic crashes occurring on long steep downgrades of highway is very frequent and severe in China. Crashes aggregate on some special places where black spots are formed in this kind of highway sections. Causes of traffic crashes black spots on long steep downgrade need to be analyzed in order to improve the traffic safety performance in those places. Based on the investigation of traffic crashes data of 5 years period occurring on a typical expressway in South China with long steep downgrades, the expressway infrastructure traffic safety performance was analyzed before and after the traffic safety countermeasures applied by crash aggregation analysis method. And based on a brake temperature transformation model of trucks, causes of traffic crashes black spots on the long steep downgrade of that expressway were analyzed. Overload was given as a main cause of those traffic crashes black spots. The findings were helpful to understanding the cause of the crashes deeply and defined the most useful traffic safety countermeasures on that kind of black spots.



Cost Benefit Analysis (CBA) workshop in Stockholm

An open seminar and workshop in Stockholm will be held on 25-26 April 2018. The workshop deals with the use of CBA as a basis for decision-making in the public sector. The workshop is organized by, among others, Professor Jan-Eric Nilsson, VTI.

The 6st Humanist Conference

The 6th HUMANIST Conference will take place 13-14 June 2018 in the Hague, The Netherlands. The scope of the conference covers a wide range of topics on Human Factors in Transport. Tania Willstrand and Alexander Eriksson will present their research results.



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