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Accession Number PB2013-102427
Title Sikkerhetseffekter av Salting. (Safety Effects of Road Salting in Winter Maintenance.)
Publication Date Dec 2011
Media Count 70p
Personal Author T. Bjornskau
Abstract Road salt is used in Norway to improve safety by increasing friction on icy roads. Given the adverse environmental effects of using road salt, it is important to know that the assumed safety effects are realised. Many studies both from Northern Europe and North America indicate that road salting reduces the number of accidents, but the reported effects are larger in older studies. The effects are also greater for less serious accidents (material damage) than for accidents with personal injury. The use of road salt should also be informed by important contextual factors. For instance, the increase in accident risk when driving on snow or ice-covered roads is greater in those areas where such driving conditions are encountered less often. Furthermore, road salting leads to better friction and thus increased speed. One is therefore faced with two optimization issues: (a) what is the increase in risk on the remaining or surrounding unsalted snow or icecovered roads when salt has been used on parts of the road network, and (b) does the speed increase from road salting increase the number of more serious road accidents. Norwegian studies of the effects of road salting are old and need updating, not least to account for the above optimization issues.
Keywords Accidents
Environmental effects
Road safety
Road salt
Winter maintenance

Source Agency Foreign Technology-Studsvik Energiteknik AB
NTIS Subject Category 85H - Road Transportation
43G - Transportation
91B - Transportation & Traffic Planning
85D - Transportation Safety
Corporate Author Transportoekonomisk Inst., Oslo (Norway).
Document Type Technical report
Title Note N/A
NTIS Issue Number 1303
Contract Number N/A

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