Article 18318

Title of the article

EFFECT OF TRAFFIC FLOW FLUCTATIONS ON THE QUALITY FOR FUNCTIONING OF PROBLEM SIGNALIZED INTERSECTIONS 

Authors

Vitolin Sergey Vladimirovich, candidate of technical sciences, associate professor, sub-department of investigation and design of transport buildings, Volgograd State Technical University (28 Lenin avenue, Volgograd, Russia), E-mail: vitolinsv@mail.ru 

Index UDK

656.13.021: 625.739.4 

DOI

10.21685/2307-4205-2018-3-18 

Abstract

Background. Signalized intersections, as a rule, pass high-intensity traffic flows in crowded construction conditions. In large cities during peak hours, signalized intersections are heavily overloaded with vehicles, evidenced by the residual vehicle queue lengths in front of them. The aim of the work is to develop the foundations of a methodology for improving the quality of road traffic for signalized intersections on the basis of an analysis of changes in traffic intensity and critical queue lengths.
Results. The article analyzes the change in traffic intensity and the length of the queues at a signalized intersection in the city of Volzhsky. The resulting queues of vehicle at a intersection reach the neighboring intersections, which leads to network congestion. It is proposed to evaluate the traffic intensity not only on the approaches of the signalized intersection, but also on problematic departures.
Regular long residual queues of cars before and after the signalized intersection are evidence of high transport demand.
The example of the definition of the level of service is given by the method of the German normative document. Manage the quality of traffic at a signalized intersection can be done by assessing the level of service before carrying out structural or program changes; forecasting it at the design stage, taking into account costs, availability of areas, the effect of various solutions; assessment of traffic quality after the implementation of projected activities, taking into account the perception of the quality of traffic by users.
Conclusions. The foundations of the quality management methodology for signalized intersections are proposed. Comprehensive criteria for assessing the quality of traffic for a signalized intersection can serve as a frequent residual queue, the availability of capacity reserves. If the formation of a long queue at a regulated intersection is inevitable, then it should be organized in an approach that does not lead to a network congestion. 

Key words

vehicle queue length, signalized intersection, traffic volume, transport demand, level of service 

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Дата создания: 04.02.2019 13:02
Дата обновления: 05.02.2019 11:45