İzole sinyalize kavşakların koordinasyonu: Aydın örneği

Öz

Nüfusun, motorlu taşıt kullanımının ve kentleşmenin artışı ile ulaşım ve trafikle ilgili problemler gün geçtikçe içinden çıkılamaz duruma gelmektedir. Kentsel alanlarda oluşan trafik sıkışıklıkları özellikle kavşaklarda gecikmeleri ve kuyruklanmaları artırarak seyahat sürelerinin uzamasına, yakıt tüketimlerinin ve karbon emisyonlarının artmasına neden olmaktadır. Bu nedenle kentsel karayolu ağlarında sıklıkla kullanılan sinyalize kavşakların planlanması, tasarımı ve işletim aşamalarının doğru ve dikkatli şekilde yapılması gerekmektedir. Kentsel karayolu ağlarındaki ana yollar üzerinde bulunan ardışık (komşu) sinyalize kavşaklar arasında koordinasyon kurulması ile ana yollar üzerinde trafiğin kesintisiz akışına izin verilerek bu kavşaklardaki gecikmeler ve kuyruklanmalar azaltılabilmektedir. Bu çalışmada, Aydın kentinin Efeler ilçesindeki ardışık iki sinyalize kavşak arasında koordinasyon kurularak kavşakların ve arterin performans analizleri gerçekleştirilmiştir. Yapılan analizlerde şerit bazlı mikro analitik bir yazılım olan SIDRA Intersection kullanılmıştır. Analizler sonucunda koordinasyon uygulaması sonucunda kavşakların performanslarında taşıt başına ortalama gecikme değerleri açısından Kavşak 1 için %62-67, Kavşak 2 için %59-69 oranında iyileşmeler elde edilebileceği, doygunluk derecelerinin ise Kavşak 1 için %72-82 aralığına, Kavşak 2 için ise %86-90 aralığına indirilebileceği belirlenmiştir.

Anahtar Kelimeler

• Sinyalize kavşak
• koordinasyon
• SIDRA
• ofset süresi
• gecikme
• doygunluk derecesi

Coordination of isolated signalised intersections: Case of Aydın

Öz

The ongoing increase in population, the number of motorized vehicles and urbanisation is resulting in transport and traffic-related problems which are becoming increasingly intractable. In urban areas, congestion leads to delays and queues, particularly at intersections, resulting in increased journey times, higher fuel consumption and elevated carbon emissions. Consequently, the planning, design and operation of signalised intersections, which are a common element of urban road networks, must be executed with the utmost accuracy and care. The coordination of consecutive (adjacent) signalised intersections on primary roads within urban road networks has been demonstrated to facilitate uninterrupted traffic flow on such roads, thereby reducing delays and queueing at these intersections. In this study, coordination was established between two consecutive signalised intersections in the Efeler district of AYDIN, and performance analyses of the intersections and the arterial road were conducted. The lane-based micro-analytical software SIDRA Intersection was utilised in the analyses. The findings of the analyses demonstrated that the coordination application enhanced the performance of the intersections with regard to average delay per vehicle, exhibiting improvements of 62-67% for Intersection 1 and 59-69% for Intersection 2. Furthermore, it was determined that the degree of saturation for the intersections could be reduced to a range of 72-82% for Intersection 1 and 86-90% for Intersection 2.

Anahtar Kelimeler

• Signalized intersection
• coordination
• SIDRA
• offset
• delay
• degree of saturation

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