Abstract
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 users' 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 (A). For the covering abstract of the conference see E217780.