Punctuality analysis by the microscopic simulation and visualization of web-based train information system data

In order to increase the robustness of a railway system, the detailed analysis for a combination of tracks, signalling systems, timetables and operation of trains is indispensable. We introduce an approach to foresee and analyse punctuality for railway lines where trains are densely operated. Our approach consists of three phases, namely, the analysis of the current situation of train operation (observation phase), the forecasting of the future situation of train operation (forecast phase) and the analysis of train operation after some changes are made (checking phase). In the observation phase and in the checking phase, we visualize train traffic record data using the Chromatic diagram. In the forecast phase, we use a microscopic simulator that we have developed. In this paper, we show our experience of applying this approach when a part of a track was relocated in the Odakyu electric railway company.