Use of Seismic Risk Analysis of Roadway Systems to Facilitate Performance-Based Engineering and Risk-Reduction Decision Making by

A new methodology for seismic risk analysis (SRA) of roadway systems has been programmed into a software package named REDARS 2. This paper describes this methodology, along with results from its application to a roadway system in the Los Angeles area. This application shows how SRA results can support performance-based engineering, assessment of system resilience, and seismic-risk reduction decision making.