Modeling traffic flow and management at un-signalized, signalized and roundabout road intersections
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Date
2005
Journal Title
Journal ISSN
Volume Title
Publisher
Academia
Abstract
Traffic congestion continues to hinder economic and social development and also has a
negative impact on the environment. A simple mathematical model is used to analyze the different
types of road intersections in terms of their Performance in relation to managing traffic congestion and
to establish the condition for stability of the road intersections after sufficiently longer periods of time
(steady-state). In the analysis, single and double lane un-signalized, signalized and roundabout
intersections are evaluated on the basis of their performance (expected number of vehicles and waiting
time). Experimental scenarios are carefully designed to analyze the performance of the different types
of intersections. It is noted that under light traffic, roundabout intersections perform better than unsignalized and signalized in terms of easing congestion. However under heavy traffic, signalized
intersection perform better in terms of easing traffic congestion compared to un-signalized and
roundabout intersections. It is further noted that for stability of a road intersection, the proportion of
the time a road link stopping at an intersection is delayed should not exceed the utilization factor (the
ratio of the arrival rate of vehicles to the product of number of service channels and service rate).
Description
Keywords
Traffic flow, Road intersections, Waiting time, Expected number
Citation
Kakooza, R., Luboobi, L. S., & Mugisha, J. Y. T. (2005). Modeling traffic flow and management at un-signalized, signalized and roundabout road intersections. Journal of Mathematics and Statistics, 1(3), 194-202.