TY  - JOUR
PY  - 2014//
TI  - Model of potential crash rates of rural roundabouts with geometrical features
JO  - Journal of transportation engineering
A1  - Pecchini, Dario
A1  - Mauro, Raffaele
A1  - Giuliani, Felice
SP  - 04014055
EP  - 04014055
VL  - 140
IS  - 11
N2  - AbstractIn recent years, there has been a widespread diffusion of roundabout intersections in the Italian road network; their undoubted popularity is attributable not only to their proven performance in terms of safety but also to their guarantee of smooth traffic flow. However, safety-related requirements of geometric designs are occasionally placed in a subordinate position; therefore, the success achieved by some foreign experiences has not been reached in every area. A model of potential crash rates may indicate how to modify the geometry of intersections to ensure safety. With regard to this, an example model based on the conflict opportunity technique has been developed for estimating crash rates at rural roundabouts. The model appears to respond well to traffic conditions and the geometry of roundabouts. Development of the model and results are described and analyzed in this paper.<p />  <p>Language: en</p>
LA  - en
SN  - 0733-947X
UR  - http://dx.doi.org/10.1061/(ASCE)TE.1943-5436.0000705
ID  - ref1
ER  -