In this study, the working principles of the signalized intersections located in the city centers to reduce the traffic density and the approaches to regulate the flow of vehicles are discussed. Analytical approaches related to vehicle delays, calculation methods of signal times and performance criteria were investigated. In the study made with the data obtained from this selected intersection, three time periods with the most frequent vehicle flow of the day were examined over two weeks of data. Queue theory is one of the most frequently used methods in waiting line problems. Queue theory models can have different notation and calculation methods according to the characteristics of individuals coming to the system or vehicles in our application such as arrival, departure, and service discipline. Generally, assumptions are made for the distributions required by queuing models and the current arrivals in traffic engineering research are assumed to be random. It is aimed to reveal its performance by using real data obtained with loop sensors from an intersection in Güngören, Istanbul. The data at this intersection chosen as a pilot was analyzed with the M/M/1 queue model and criteria such as the queue lengths of the connected arms at a signalized intersection, the time spent in the system, the service time per vehicle, and the average waiting times were revealed. In the applied scenario, each of the junction link arms was evaluated as a queue and the performance of each arm was evaluated separately in the calculations. According to the results, it is concluded that the signaled systems do not work optimized in certain time zones of the day and are not sufficient in decreasing the tail lengths. In these time zones of the day, it can be said that the green times given to the junction arms or the working order of the arms need improvement.
|Supporting Institution||İsbak AŞ.|
|Thanks||Çalışmamıza veri ve materyal anlamında destek veren İstanbul Büyükşehir kuruluşlarından İsbak AŞ firma ve yetkililerine teşekkür ederiz.|
Publication Date : August 31, 2020
|APA||Güneş, F , Bayraklı, S , Zai̇m, A . (2020). Sinyalize Bir Kavşakta Oluşan Trafik Akımının Kuyruk Teorisi ile Performansının İncelenmesi . Avrupa Bilim ve Teknoloji Dergisi , (19) , 56-65 . DOI: 10.31590/ejosat.711094|