Development of Risk-based Railway Safety Management System

Organizations should have a public arrangement to guarantee safety of own business activities through policy, resource and order. The arrangement is called Safety Management System (SMS). SMS contributes to efficient control and monitor for prevention of potential hazard and draws investment priority for safety improvement; quantitative analysis which is investment costs comparing with accident prevention costs; ability that the organizations meet safety standards. Risk-based railway SMS has five steps. Those are analysis of problems, development of requirement to resolve, establishment and fulfillment of formal safety plan and application of PCDS cycle for safety activities. Considering the above procedures, modeling was developed. It adopted Cradle S/W as architecture tools to facilitate upgrade and performance analysis. It is based on SE standard (IEC15288). This report demonstrates the general cases which the architecture tool is applied. Roles of the supervisors are mainly safety activities and data exchange in SMS. The roles are more specifically classified as regulator, operating agency (TU, IM), system provider, independent assessment agency and accident investigation board. In general, government enforces safety management requirement to supervisors and they should submit a proposal reflecting the requirement. If it was approved by the government, it would be incorporated annual safety management plan. For continual management of railway safety, the plan should be renewed every year.