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Best Practices for Road Weather Management Version 2.0

Title:

Variations in the Swedish Winter Road Slipperiness

Abstract:

In this paper, data from 654 Road Weather Information System stations in Sweden were used during the five winter seasons, 1998/1999 to 2002/2003 were used to study the distribution of slippery conditions throughout Sweden. The number of incidents involving slipperiness during a winter season varies according to the location in Sweden and the manner in which the slippery conditions were formed. Winter indices were used to calculate the total number of slippery conditions. This was later compared to Sweden's latitudes. It shows a good correlation between the distribution of slipperiness and Sweden latitudes, both for the total slipperiness and the different types of slipperiness. When severe hoarfrost was analysed at the regional level, a high degree of correlation between slipperiness and latitude was found.

Source(s):

13th Standing International Road WEather Conference (SIRWEC), Göteborg University Road Climate Centre (Sweden)

http://onlinelibrary.wiley.com/doi/10.1002/joc.3370110307/abstract

Date: 2006

Author:

Andersson, Gustavsson, Bogren

Keywords:


Road Weather Information System (RWIS)
Pavement condition
Precipitation
Rain
Snow
Ice/Frost
Air temperature
Climate/Season

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