A Model to Evaluate the Potential Accident Rate at Single-Lane and Double-Lane Roundabouts

The paper presents a model for the potential accident rate evaluation in large and medium roundabouts, both single-lane and double-lane. The model is based on dynamical considerations and on user behavior at the intersection. To define the relevant potential conflicts, crash typologies specific for roundabouts are adopted. Then an illustrative model calibration is shown, on the basis of available data. Finally, some sensitivity analyses are performed, to test the model behavior by varying some parameter values. The present model can provide a further element for the choice between alternative typologies of intersection for re-qualification and adjustment of road junctions.


  • English

Media Info

  • Media Type: CD-ROM
  • Features: Figures; References; Tables;
  • Pagination: 11p
  • Monograph Title: Road Safety on Four Continents, Warsaw, Poland, 5-7 October 2005, Conference Proceedings

Subject/Index Terms

Filing Info

  • Accession Number: 01091464
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 31 2008 3:40PM