Journal
STRUCTURE AND INFRASTRUCTURE ENGINEERING
Volume 6, Issue 1-2, Pages 145-157Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/15732470802663862
Keywords
highway transportation system; seismic retrofit; driver delay; loss of opportunity; economic analysis; benefit-cost ratio
Categories
Funding
- California Department of Transportation (Caltrans) [RTA-59A0304]
- Federal Highway Administration through the Multidisciplinary Center for Earthquake Engineering Research (MCEER) in Buffalo, NY [DTFH61-98-C-00094]
Ask authors/readers for more resources
A simulation-based study is performed to evaluate the socio-economic effect of seismic retrofit of bridges using the California Department of Transportation (Caltrans) Los Angeles area highway network as the testbed. 47 scenario earthquakes that represent the regional seismic hazard, consistent with the US Geological Survey (USGS) hazard map, are considered. Two sets of bridge fragility curves, before and after seismic retrofit, are used to simulate the seismic performance of the network in both cases. Analysis estimates the total social cost arising from driver delay and loss of opportunity in the degraded network. The benefit of seismic retrofitting is computed in present values as equal to the total future economic losses avoided from social cost and repair/restoration cost over the remaining bridge service lives. Estimated benefit is compared with the retrofit cost to investigate the benefit-cost ratio. Study shows that from the Caltrans point of interest, bridge seismic retrofit is cost-effective when loss avoided due to social cost is considered.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available