Kartläggning av bussolyckor vintertid
2006 (Swedish)Report (Other academic)
In an earlier VTI study from 1997 in which the tyre usage for heavy vehicles was surveyed, statistics suggested that buses may have a larger problem with slippery roads compared to other vehicle types, like personal cars and heavy trucks. The statistical data was however not large enough to conclude that this is the case. Therefore, the present study was conducted with the aid of accident data for various vehicle types collected from VITS, the information system for traffic safety of the Swedish Road Administration. The information concerns accidents that occurred during seven winters 1995/1996-2001/2002. Corresponding information has also been collected from Finnish accident data. All of the statistical analyses in this study indicate problems with traffic safety for buses on icy or snowy roads. However, none of these results are statistically significant. The statistical uncertainty in these results stems from a low number of accidents, but also from a lack of information regarding the actual travelled distance on different road conditions for the vehicles. It is probably necessary to know the travelled distance on different road conditions for buses to make a conclusion about accident probability for buses on winter roads. We will therefore make inquiries to bus companies in Sweden during the winters 2005/2006 and 2006/2007 concerning the travelled distances on different road conditions to complete the present study.
Place, publisher, year, edition, pages
Linköping: VTI., VTI notat 10-2006 , 2006. , 28 p.
Bus, Accident, Analysis, Winter, Icy road, Snow, Injury, Tyre, Statistics, Prediction, Risk, Probability, Mathematical model
Research subject Road: Traffic safety and accidents, Road: Accident risk; Road: Traffic safety and accidents, Road: Accident statistics
IdentifiersURN: urn:nbn:se:vti:diva-1595OAI: oai:DiVA.org:vti-1595DiVA: diva2:670307