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http://dx.doi.org/10.12815/kits.2012.11.6.015

The Macroscopic Model for Signalized Intersections to Consider Progression in relation to Delay  

Han, Yohee (서울시립대학교 교통공학과)
Kim, Youngchan (서울시립대학교 교통공학과)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.11, no.6, 2012 , pp. 15-22 More about this Journal
Abstract
A performance index of singalized intersections is a standard to optimize signal control variables and to manage traffic flow. Traffic delays is generally used to minimize the average delay time on intersections or networks, progression efficiency is used to improve travel speed of main cooridors or to provide transit signal priority. We manage traffic flows with only selecting one index between delays and progression according to the objective of traffic management and field characteristics. In real field, the driver's satisfaction is high in any performance criteria when the waiting time is shorter and the unnecessary stop in front of traffic is smaller. This paper aims to develop simulation model to represent real progression with concurrently considering delays and progression. In order to reflect an effect of level of traffic volumes and residual queues which don't be considered in prior progression model, we apply shockwave model with flow-density diagram. We derive Cell Transmission Model of Daganzo in order to develop the delay index and the progression index for the macroscopic simulation model. In order to validate the effect, we analysis traffic delays and progression efficiency with comparing this model to Transyt-7F and PASSER V.
Keywords
Macroscopic Model; Progression Index; Real Progression; Residual Queue; Performance Index;
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