Ishaan Gupta
Independent Researcher
India
Abstract
Traffic congestion at urban intersections poses significant challenges to efficient transportation management. This study investigates traffic flow simulation in urban intersections using PTV VISSIM up to its 2016 version. A microscopic simulation model was developed for a representative four-legged urban signalized intersection. Calibration and validation were performed using field traffic data collected in 2016. Key performance indicators such as average delay, queue length, and throughput were analyzed under varying signal timing scenarios. The results demonstrate that optimized signal timings derived from simulation can reduce average vehicle delay by up to 18% and queue lengths by up to 22%. The study confirms the applicability of VISSIM in urban traffic planning and provides guidelines for practitioners to implement simulation-based optimization in similar contexts.
Key words
Traffic flow simulation, Microscopic modelling, Urban intersections, PTV VISSIM, Signal timing optimization
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