Quantification of Traffic Congestion Using the Concept of Queue length for Curbside Bus Stops on Two Lane Undivided Road
The present study aims to quantify the traffic congestion using the concept of queue length for curbside bus stops on two lane undivided road. Curbside bus stops obstruct the traffic flow by reducing the carriage width. They are provided in areas where there is a practical difficulty for providing bus bays due to less ROW (Right of Way). At curbside bus stops, congestion occurs due to dwell time, frequency of buses, used carriage width and volume. In this study the factors responsible for queueing such as dwell time, used carriage width and volume were taken as an independent parameter to develop a queueing length model using Statistical Package for the Social Sciences (SPSS). Six curbside bus stops in Kollam district were taken for the study. A multiple linear regression model was fitted for developing queueing length model. The adjusted R 2 obtained from the model is 0. 748.Validation of the model was done with the field data. The predicted queueing length was used to formulate a congestion index in order to quantify the traffic congestion in the study area selected.
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