Özet:

Globally developing economies and opportunities have caused an increase in the density of people in city centers in recent years; thus, an exponential increase has been experienced in the number of motor vehicles, which complicates the creation of a sustainable traffic network. Waiting times and the number of stops cause psychological, physical, and environmental problems. The efficiency of intersections is vital to ensure sustainable transportation. Modern roundabouts outperform signalized roundabouts, and their popularity has been increasing in recent years. However, the geometric features of intersections should be suitable for the location and traffic composition. In this study, the Durmazlar roundabout, which is currently a signalized roundabout in Bursa, has been transformed into a modern roundabout and redesigned. One of the aims of the study is to make minimal changes in the geometry of the roundabout. One-way road applications have been made to regulate entrances and exits on problematic roads. Modeling of the roundabout and collecting data was performed through the PTV Vissim software. Queue length, travel time, and speed parameters of the data obtained regarding the new scenario and the current situation were compared.

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