Integrated public transport index (IPTI): A new measure for identifying public transport services in Indonesia

Abstract

The low level of integrated public transport services is a significant concern regarding the effectiveness and efficiency of these services. This study aims to develop an assessment of the integrated public transport index (IPTI) for identifying public transport services in Indonesia. The research data is based on a survey of 1050 respondents of airplane passengers from six cities that have air-rail integrated services (ARIS) in Indonesia and 10 expert respondents from regulators, operators, academics, and professionals. The data is explored by using the analytical hierarchy process (AHP) and developing new measures for identifying the assessment of IPTI value. The availability of physical, operational, and institutional integration can be used as a leading indicator to measure the IPTI. Indonesia's public transportation system is physically integrated and has good connectivity, achieving optimal IPTI scores. However, operational and institutional integration needs further attention to ensure the sustainability public transport system.