Safety Evaluation of Turbo Roundabout Considering Autonomous Vehicles Operation
More details
Hide details
Faculty of Engineering and Architecture Polytechnic School, University of Catania, Viale Santa Sofia, 64 Ed 3, 95123 - Catania, Italy
Faculty of Engineering and Architecture, University of Enna Kore, Cittadella Universitaria Viale delle Olimpiadi, Enna, Italy
Submission date: 2020-09-08
Final revision date: 2020-11-05
Acceptance date: 2020-11-06
Publication date: 2021-03-31
Archives of Civil Engineering 2021;67(1):439-460
A microsimulation approach was carried out in this paper to evaluate the safety performance of turbo roundabouts in which the "CAVs" of connected autonomous vehicles are mixed with the "CVs" of conventional vehicles the research aims to evaluate the advantages in terms of safety and performance of turbo roundabouts. The paper shall also lead to describe the methodological path followed to build VISSIM models of turbo roundabout changing O-D matrix as real case applications, to calibrate the simulation models, and to estimate the potential conflicts when the percentages of CAVs are introduced into the traffic mix. The results, in accordance with the existing bibliography, have shown that the safety levels and the parameters that determine an improvement in the service level in a turbo roundabouts are significantly influenced not only by the geometric characteristics, but also by the distribution of vehicular flows. Therefore, it follows that in absence of crash data including CAVs, the surrogate measures of safety must be considered a strong approach to evaluate the safety performance of a roundabout so far, any road entity.
Journals System - logo
Scroll to top