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.
Kavşaklar farklı yönlerden gelen trafik akımlarının ortaklaşa kullanıldığı alanlardır. Bu nedenle araç gecikmeleri, kuyruk uzunluğu, bekleme süreleri gibi trafiğe etki eden faktörlerin en yoğun yaşandığı yerler kavşaklar olmaktadır. Bu durum, kavşakların trafiğin performansı üzerinde önemli etkiye sahip olduğunu göstermektedir. Öyleyse kavşak optimizasyonları trafiğin etkin ve verimli kullanılması için trafik iyileştirme çalışmalarının başında gelmektedir. Bu çalışmada Bursa ili Nilüfer ilçesinde bulunan sinyalize dönel kavşak olarak hizmet veren Durmazlar Kavşağı incelenmiştir. Kavşağın mevcut durumu ve mevcut durum üzerinde uygulanan farklı geometrik iyileştirmeler VISSIM simülasyon programı ile analiz edilmiştir. Yapılan iyileştirmeler sonucunda kavşak geometrisinin kavşak performansı üzerinde etkili olduğu görülmüştür. Nihayetinde seyahat süresi, durma sayıları ve kuyruk uzunluklarının azaldığı, araç hızlarının arttığı bunlara bağlı olarak kavşak hizmet seviyesinin iyileştiği ve emisyon miktarlarının azaldığı görülmüştür.
Primary Language | Turkish |
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Subjects | Civil Engineering |
Journal Section | Research Articles |
Authors | |
Publication Date | August 31, 2022 |
Submission Date | January 11, 2022 |
Acceptance Date | June 5, 2022 |
Published in Issue | Year 2022 Volume: 27 Issue: 2 |
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