Microsimulation Study on Bus Travel Time Improvement with Heterogeneous Traffic Flow in Phnom Penh, Cambodia

Abstract

Design and operation strategies for bus lanes during peak hours are examined. The operation of a bus under different lane management and bus stop distance settings is investigated to improve bus travel speed. A simulation model is developed to represent heterogeneous traffic flow for a corridor in Phnom Penh, Cambodia. A traffic simulator, VISSIM, is used, and the parameters are calibrated on the travel times of multiple vehicle types by structural equation modeling. The results suggest that a bus lane exclusively used by buses and motorbikes improves the travel time of buses, cars and motorbikes by 33%, 8% and 6%, respectively.