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Estimation of Saturation Flow and PCU at Intersection with Platoon Dispersion Model


Devangi G. Hattimare , HASHMUKH GOSWAMI COLLEGE OF ENGINEERING; Prof. Shrinath Karli, hasmukh goswami college of engineering,vehlal; Prof Vishal Vadhel, Atul polytechnic mahudi,khadat; Prof. Pinakin Patel, Gandhinagar institute of technology,kalol; Prof.Vrundani Vaidhya, hasmukh goswami college of engineering,vehlal


heterogeneous traffic; passenger car unit; saturation flow


This study will analyse the effect the road traffic and travel situation is highly aggravated in metropolitan cities of developing country like India because of significant growth in traffic and addition of more and more numbers of vehicles year by year in to the stream with wide ranging static and dynamic characteristics. Signalisation is a traffic control strategy to ease the competition by providing right of way in a cyclic manner to conflicting traffic at intersections. Saturation flow is a major component in the design of signals, and is influenced by a variety of factors like vehicle composition, intersection geometry and driver’s behaviour. Two-wheelers (2W) constitute a major proportion of urban traffic and therefore their effect on the saturation flow could be substantial. The highway capacity manual (HCM)000 has recommended a saturation flow model primarily for homogeneous conditions, with limited ability to address heterogeneity. But the traffic in India is highly heterogeneous and hence, defining a unified saturation flow concept is a challenging task. The variability in vehicle types necessitates the use of passenger car units (PCUs).Mixed traffic behaviour on saturation flow rate at the signalised intersections. Traffic data will be collected at signalised intersections located in urban area of different cities of Gujarat with different geometric configurations and approach width. Micro level discharge rate studies will be carried out by observing different traffic attributes. The passenger car units (PCUs) values will be derived for different types of vehicles in the traffic stream by different approaches. Mixed traffic discharge flow models will be developed using regression method by relating the various parameters. Also an effect of platoon dispersion on discharge rate will be carried out under this study.

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Manuscript Id :IJSTEV3I5092
Published in :Volume : 3, Issue : 5
Publication Date: 01/12/2016
Page(s): 148-154
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