Road accessibility from county seat under flooding: Hampton, Newport News, James City, Poquoson, Williamsburg, York, Accomack, Northampton, Alexandria, Fairfax, Gloucester, Mathews, Middlesex
Mitchell, Molly Hendricks, Jessica Schatt, Daniel Berman, Marcia
Mitchell, Molly
Hendricks, Jessica
Schatt, Daniel
Berman, Marcia
Abstract
The impacts of recurrent flooding on roadways present challenging social and economic considerations for all coastal jurisdictions. Maintenance, public and private accessibility, evacuation routes, and emergency services are just a few of the common themes local governments are beginning to address for low-lying roadways currently known to flood. The project implements a protocol developed by CCRM to analyze the level at which road flooding may impact communities and their ability to reach key locations at periodic intervals; through the year 2100 in coastal Virginia. Using a network analysis, road accessibility is evaluated at different levels of flooding (at 0.1 meter flooding intervals from 0-3 meters of flooding). Portions of roads become inaccessible if one cannot travel from the locality's seat (e.g., the county courthouse) to that road because of intervening flooding. In some localities (e.g., Hampton City), roads at the county seat become flooded. In these cases, based on our definition of accessibility, the entire locality becomes inaccessible at that flooding level.
Description
This dataset is associated with the following publication:
Mitchell, M., J. Hendricks, D. Schatt. (2023) Road network analyses elucidate hidden road flooding impacts under accelerating sea level rise. Front. Environ. Sci. 11:1083282. doi: 10.3389/fenvs.2023.1083282
Date
2021-05-01
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CCRM GIS Data, Coastal flooding, sea level rise
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Virginia Institute of Marine Science
DOI
https://doi.org/10.25773/pq99-2592