MODELING WALKING ACCESSIBILITY TO PUBLIC TRANSPORT TERMINALS: CASE STUDY OF SINGAPORE MASS RAPID TRANSIT

Abstract

Walking accessibility is defined as how easy it is to access public transport terminals by walking. Walking effort instead of walking distance or walking time is used to represent the utility of walking as access mode to public transport terminals (Mass Rapid Transit (MRT) stations). This effort is expressed by an equivalent walking distance, which consists of actual walking distance and generalized walking effort. The main objective of this research is to develop walking accessibility measure using equivalent walking distance. The probability of walking is introduced to show the acceptable walking distance to public transport terminal. This concept assumes that for every distance to the terminal, there is a probability of walking to access. Eventually, all components of walking route would be converted to equivalent distance. Each type of walking routes to access public transport (i.e. walkways, sidewalks and road crossings) has some elements that influence the effort of walking.