Underground Roundabouts: Analysis of Several Layouts for A Case Study in Urban Area

Abstract

* Address correspondence to the author at the Department of Civil, Environmental and Mechanical Engineering, University of Trento, Italy; Tel: 3339993614; E-mail: marco.guerrieri@unitn.it Persaud [5] observed that the decrease in all accidents was 40% and the reduction in injury accidents was 80%; Troutbeck [6] observed a 74% reduction in injury accidents following the transformation of 73 roundabouts in Victoria, Australia.