Project
Safe accessibility
Funding origin:
Sweden
STRIA Roadmaps:
Other ()
Transport mode:
Road
Transport sectors:
Passenger transport
Freight transport
Duration:
Start date: 01/01/2015,
End date: 01/12/2015
Status: Finished
Funding details:
Overview
Objectives:
The objective of the project is to study the traffic safety effects of four different measures implemented on rural roads in Sweden. The measures investigated are; milled centreline rumble strips on rural 2-lane roads, narrow 2+1 roads with median barrier, divided roads (painted 2+1 roads with median rumble strips) and shoulder rumble strips on motorways.
Methodology:
The method used is a before and after study with control group based on crash statistics from the Swedish crash data base Strada. Using a control group, the results have been adjusted for the general road safety trend and changes of traffic volumes. In addition, a limited Empirical Bayes study was done to adjust for regression to the mean.
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