A Support System for Early Resumption of Regular Train Operations Applying Public Earthquake Information

摘要

At present, in case of earthquakes with tremors exceeding the operational control threshold, walking patrols must inspect seismographs for each relevant track section, to ensure safety. In order to resume train operations more rapidly after restrictions have been imposed on train operations due to an earthquake, a working model system was developed which can accurately estimate seismic motion just after the earthquake. This system makes facilitates decision making for earlier resumption of traffic following the earthquake. By obtaining seismic information not only from railway operator's seismographs but also from public data sources in quasi-real-time, this system estimates the distribution of the shake over meshed planes and extracts the seismic motion at any given chainage point along the target railway section being evaluated.