India being a developing country, urban regions are often found to face extra congestions and excessive delays. With higher level of heterogeneity, lane following behaviour is hardly observed. Two-wheeler and motorized Three-wheeler driver accepts the minimum available lateral gap for overtaking. Complete right of way is utilized including shoulder (if available) for manoeuvres. Along with the longitudinal interaction, lateral interactions of vehicles are also observed on large scale, which mainly result in diminution of overall throughput of roadway. Hence, present study is attempted to study lateral placement of vehicles on urban arterial road. Lateral interaction being most intricate parameter and difficult to study from field, microscopic traffic simulation software VISSIM was used to develop various traffic volumes (From LOS-C to LOS-E). Simulation model was calibrated with data collected from field. Speed being the qualitative parameter, it was considered as prime parameter for model calibration. It has been observed that at moderate traffic flow, vehicles tend to maintain more gap even at low speed. But, at high flow level (LOS-E), this gap maintaining behaviour is very complex and fluctuating. Vehicles were observed to maintain abruptly varying lateral clearances at various percentile speeds. This variation was studied for speed and lateral clearance at 15th, 50th and 85th percentile values for combined data of all LOS volumes.
Lateral Placement of Vehicles Under Mixed Traffic in Indian Urban Scenario
Lecture Notes in Civil Engineering
Proceedings of the Fifth International Conference of Transportation Research Group of India ; Chapter : 32 ; 503-518
2022-03-06
16 pages
Article/Chapter (Book)
Electronic Resource
English
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