Assessment of Bridges for Tsunami Evacuation Route Plan in Padang: Survey of Existing Condition and Identification of Problems

Abstract

Padang, as one of the tsunami prone city in the world, had already prepared itself for the upcoming event. Local government already issued tsunami evacuation plan, and assigned several buildings as temporary evacuation facilities or shelters. One important thing in this mitigation plan is the performance of the infrastructures as roads and bridges. Bridges are essential since any damages or failures leads to disruption or even widespread jam of traffic after the big earthquake. Draft of new seismic code for bridges in Indonesia suggests that bridges for evacuation plan must be designed with very limited damage or near elastic design. This study attempts to identify bridges that are included in tsunami evacuation plan route and summarizes the existing condition. The collected data and information are important and could be used as basic for future studies such as retrofit plan.