Analys av trafikolyckor före och efter beläggningsåtgärd: beläggningsår 1997 och 1998 i Vägverket Region Väst

Hans Velin
Gudrun Öberg

This is the third study of the effects on traffic accidents of resurfacing measures that Region West of the Swedish National Road Administration has commissioned. All three have been carried out as before-and-after studies with two years before and two years after the measure.

In the study reported here, the third in order, roads resurfaced during 1997 and 1998 were examined.

When the two resurfacing years are examined individually, an accident increase is obtained for all police-reported accidents after resurfacing. If personal injury accidents are analysed separately, accident decreases are obtained for both resurfacing years: the number of accidents decreases also when only accidents with seriously injured and killed are analysed. None of the results are statistically verified.



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