Effects of Two-Wheelers on Saturation Flow at Signalized Intersections in Developing Countries
Publication: Journal of Transportation Engineering
Volume 139, Issue 5
Abstract
Two-wheelers (TW) constitute a major proportion of urban traffic in developing countries and therefore their effect on the saturation flow at signalized intersections could be substantial. This paper attempts to study and analyze the effect of two-wheelers on the saturation flow of signalized intersections by collecting data at a few signalized intersections in Bangalore, India. A strong correlation is observed between the measured saturation flow and the proportion of two-wheeler traffic, which suggest that two-wheelers have significant impact and should be considered in the capacity analysis of signalized intersections. In this paper, the effect of two-wheelers on saturation flow rate is incorporated in a previous model by calibrating and introducing a new adjustment factor for two-wheelers. Results show that saturation flow measured using the modified HCM equation is closer to observed saturation flow values.
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Published In
Journal of Transportation Engineering
Volume 139 • Issue 5 • May 2013
Pages: 448 - 457
Copyright
© 2013 American Society of Civil Engineers.
History
Received: May 3, 2012
Accepted: Nov 6, 2012
Published online: Nov 8, 2012
Published in print: May 1, 2013
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