Method for Updating Operational Regulation Standards Considering Seismic Risk of Railway Facilities

Abstract

The regulation values of seismic intensity to suspend a train operation after earthquakes are determined empirically based on past disasters. Therefore, it is difficult to reflect the effects of seismic countermeasures in the operational regulation standards. To resume train operations as quickly as possible after earthquakes, this study proposes a method for updating the operational regulation standards based on risk analysis. In the proposed method, the seismic risk of each facility is evaluated and used to determine the regulation values for suspending train operations. Using this method, the effects of seismic countermeasures can be directly reflected in the operational regulation standards.