Service reliability is an important attribute that determines the quality of service in a public transit operation. Efficient administration provides a consistent level of service, benefiting both commuters and operators of the service. This paper presents the results of empirical modeling of bus running times along a particular route in Singapore. The results showed that traffic-light stoppage is the most important factor affecting the running times of buses. The numbers of passengers alighting and passenger stops made, and link distances, are other significant parameters that contribute to the model. Factors that influence bus running times to a lesser degree are the numbers of buses along the link, the time of the day, and the proximity to city areas. The model developed in this research can be used to improve the planning process of a bus service by providing bus operators with an understanding of the factors that affect running times and service reliability. (a).
Samenvatting