Özet:

Intersections are areas where traffic flows from different directions are shared. For this reason, intersections are the places where factors affecting traffic such as vehicle delays, queue length, waiting times, etc. are most intensively experienced. This situation shows that intersections have a significant impact on traffic performance. Therefore, intersection optimizations are one of the leading of traffic improvement studies for the effective and efficient use of traffic. In this study, Durmazlar intersection, which is a signalized roundabout in Nilüfer district of Bursa city, was examined. The current situation of the roundabout and the different geometric improvements applied on the current situation were analyzed with the VISSIM simulation program. As a result of the improvements implemented, it has been seen that the intersection geometry has an effect on the intersection performance. As a result, it was observed that the travel time, the number of stops and the length of the queues decreased, the vehicle speeds increased, the service level of intersection improved and the amounts of emissions decreased.

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