Evaluating real-time information systems on public transport disturbances

Abstract

Real-Time Information (RTI) systems are a key component of the management process of public transport disturbances. Smartphone applications, in particular, are becoming a popular means of disseminating information to passengers. Despite the widespread usage of RTI systems, little is known on how accurate those systems are, which information they provide, or which disturbances are not reported. This work proposes a methodological framework and a set of metrics to evaluate a text-based RTI system, comparing the alerts sent to passengers with the actual disturbances in the network, described by Automatic Vehicle Location data (AVL). A case study is conducted on the RTI system of Zurich to evaluate its performance. The results show high precision in providing correct information, despite only a small percentage of disturbances are reported. Finally, this work proposes recommendations on improving the RTI system analyzed.