Development of a Performance Measurement Framework on Bus Transport Reliability at Bus Stops

Abstract

The purpose of this study is to develop a performance measurement framework for measuring bus transport reliability at bus stops. For this, time keepers’ records at bus stop level have been collected. They consist of four factors, i.e. scheduled arrival, actual arrival, scheduled departure and actual departure. From these data, scheduled headway and actual headway were calculated. A measure on perceived waiting time (PWT) was developed as the difference between actual headway and a half of the average schedule headway for the particular time period. The performance measure was validated for 3 bus stops. Earliness index was developed as the number of observations, which was where the PWT was lesser than half of the average schedule headway. This Earliness index was validated for 3 bus stop records, and it was observed that along with the changes in the scheduled headway in time duration, the EI value is also changed. This measure helps for policy makers to decide on the reliability of public transport at bus stops.