onr:"swepub:oai:DiVA.org:vti-1605"
Search: onr:"swepub:oai:DiVA.org:vti-1605" > Variation in car ac...
- 1 of 1
- Previous record
- Next record
- To hitlist
Variation in car accident risk during winter
-
- Bergström, Anna (author)
- Statens väg- och transportforskningsinstitut
- (creator_code:org_t)
- VTI., VTI notat 19A-2006, 2006
- English.
- Series: VTI notat
- Reports (pop. science, debate, etc.)
Abstract
Subject headings
Close
- At the beginning and end of a winter season, there is a greater risk of car accidents in ice and snow conditions than during mid-winter. This was found in this Swedish study where accident data for four winters was correlated to road condition data obtained through visual observations. The purpose of the study was to see how the car accident risk on ice and snow varies over the winter. To examine this, the winter season was divided into three periods: Early winter, Mid-winter, and Late winter. Accident rates were calculated for each period and the values for Early and Late winter were compared with the corresponding Mid-winter values. The accident rate (car accident risk) is here defined as the number of accidents divided by the vehicle mileage, where the accident data includes all the car accidents on Swedish state roads recorded by the police, during the winter seasons from 1993/94 through 1996/97, excluding collisions with wildlife. Accident rates were calculated for five different types of road condition assessed by the police: Dry bare ground, Moist or Wet bare ground, Packed snow or Thick ice, Black ice or Hoar-frost, and Loose snow or Slush, where the last three are ice and snow conditions. The vehicle mileage for each road condition was calculated on the basis of visual observations performed to monitor the road condition. The analyses show that icy and snowy road conditions constitute a greater risk during Early and Late winter periods than during Mid-winter. The reason for this could be that drivers are more likely to expect these kinds of road condition during Mid-winter than at the beginning and end of the winter season. Moreover, the accident risk is greater during Late winter than during Early winter, and the shorter the Early and Late winter period, the higher the risk.
Keyword
- Accident rate
- Winter
- Month
- Black ice
- Snow
- Climate
- Statistics
- Road: Accident statistics
- Road: Accident statistics
- Road: Winter maintenance
- Road: Winter maintenance
Publication and Content Type
- pop (subject category)
- rap (subject category)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Bergström, Anna
- Parts in the series
- VTI notat
- By the university
- VTI - The Swedish National Road and Transport Research Institute
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
