The Transport Research Laboratory (TRL) has over the last decade carried out research for the Charging and Local Transport Division of the Department of the Environment, Transport and the Regions (DETR) on ways of reducing traffic speeds on main roads through villages. As part of the VISP (VIllage SPeed reduction) study, TRL monitored changes in speeds and flows at villages in which a range of measures had been introduced. Subsequently, TRL monitored the application of more extensive measures in villages on more major (largely trunk) roads. TRL has now carried out a study of the changes in accident numbers occurring at 56 villages where traffic calming has been introduced. The paper presents the results in terms of the overall reduction in accident numbers, reductions in the number of accidents of different severities, and how the reductions are related to the type of measures used. The relationship between the changes in speed and in accidents is considered. (A)
Samenvatting