Real-time information in public transport systems

Abstract

Real-Time Information (RTI) systems play a crucial role in managing disturbances within public transport systems. Smartphone applications, in particular, have emerged as a prevalent channel for conveying information to passengers. A lot of studies focus on the impact of RTI systems mostly by simulating the adaptive behavior of passengers. However, there remains a significant gap in understanding the quality of real-time information in public transport systems in terms of accuracy and timeliness. This study introduces a methodological framework and a series of metrics for evaluating text-based RTI systems by comparing the alerts issued to passengers with the actual disturbances recorded in the network, as captured by Automatic Vehicle Location (AVL) data. A focused case study on Zurich’s RTI system is conducted to assess its quality. The findings indicate that the system achieves a high accuracy in delivering information, although it reports only a limited fraction of disturbances. Based on these outcomes, the paper offers strategic recommendations for enhancing RTI system in public transport systems.