CAPACITY DROP AT T-JUNCTIONS: MODELING AND SIMULATION OF BASSAWA–PALLADAN JUNCTION, ZARIA

This study investigates the capacity drop phenomenon at T-junctions using a modelling and simulation approach. Capacity drop, defined as the reduction in queue discharge flow compared to pre-queue capacity, is a recurrent yet under-researched challenge in traffic engineering. Using traffic flow data collected at the Bassawa-Palladan T-junction in Zaria, the study applies Poisson processes and Markov chains to develop a stochastic model. The model simulates the interaction of mainstream and junct