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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/10579

Title: The effects of roundabouts on accidents with bicyclists: influence of the design type of cycle facilities
Authors: DANIELS, Stijn
BRIJS, Tom
NUYTS, Erik
WETS, Geert
Issue Date: 2007
Citation: XXth ICTCT-workshop, Valencia, Spain - 25/10/2007 - 26/10/2007.
Abstract: Roundabouts in general have a favourable effect on traffic safety, at least for crashes causing injuries. Especially the number of severe crashes (fatalities and crashes involving serious injuries) appears to decrease after converting intersections into roundabouts. Less is known about the safety effects of roundabouts for particular types of road users, such as bicyclists. A before-and-after study with the use of a comparison group on a sample of 90 roundabouts in Flanders-Belgium was conducted in order to assess the effects on crashes with bicyclists. This study revealed a significant increase in the number of severe injury crashes with bicyclists after the construction of a roundabout. Roundabouts with cycle lanes perform worse, regarding injury crashes with bicyclists, compared to the three other design types (mixed traffic, separate cycle paths and grade-separated cycle paths). Roundabouts that are replacing signal-controlled intersections seem to have had a worse evolution compared to roundabouts on other types of intersections.
URI: http://hdl.handle.net/1942/10579
Category: C2
Type: Conference Material
Appears in Collections: Research publications

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