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2016

Coupling mode-destination accessibility with seismic risk assessment to identify at-risk communities

3 years 11 months ago
Coupling mode-destination accessibility with seismic risk assessment to identify at-risk communities
In this paper, we develop a framework for coupling mode-destination accessibility with quantitative seismic risk assessment to identify communities at high risk for travel disruptions after an earthquake. Mode-destination accessibility measures the ability of people to reach destinations they desire. We use a probabilistic seismic risk assessment procedure, including a stochastic set of earthquake events, groundmotion intensity maps, damage maps, and realizations of traffic and accessibility impacts. For a case study of the San Francisco Bay Area, we couple our seismic risk framework with a practical activity-based traffic model. As a result, we quantify accessibility risk probabilistically by community and household type. We find that accessibility varies more strongly as a function of travelers’ geographic location than as a function of their income class, and we identify particularly at-risk communities. We also observe that communities more conducive to local trips by foot or...
Mahalia Miller, Jack W. Baker
Added 09 Apr 2016
Updated 09 Apr 2016
Type Journal
Year 2016
Where RESS
Authors Mahalia Miller, Jack W. Baker
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