抄録
With increasing urban traffic flows and increased congestion, the question of design modifications and intersection reconstruction is a common problem for urban traffic managers. In this paper we compare and evaluate the design of a roundabout and intersection in the Norrkoping city, Sweden. The intersection has been simulated with the traffic microsimulation program Aimsun, with observed data from afternoon rush hours traffic. A roundabout, a signalized intersection design and a bowtie intersection design have been proposed and evaluated using results from the simulation. The results from the simulation study indicate that a roundabout design performs better in terms of the travel time compared to a traditional signalized intersection design. A hybrid version of the roundabout and the signalized intersection, a bowtie intersection, shows better performance in terms of travel time passing the junction than both the roundabout and the signalized intersection.
