 |
| Titel |
An accessibility graph-based model to optimize tsunami evacuation sites and routes in Martinique, France |
| VerfasserIn |
M. Péroche, F. Leone, R. Gutton |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1680-7340
|
| Digitales Dokument |
URL |
| Erschienen |
In: Caribbean Waves 2 Conference ; Nr. 38 (2014-01-23), S.1-8 |
| Datensatznummer |
250121292
|
| Publikation (Nr.) |
 copernicus.org/adgeo-38-1-2014.pdf |
|
|
|
|
|
| Zusammenfassung |
| The risk of tsunami threatens the whole Caribbean coastline especially the
Lesser Antilles. The first available models of tsunami propagation estimate
that the travel time from the closest seismic sources would only take few
minutes to impact the Martinique Island. Considering this threat, the most
effective measure is a planned and organized evacuation of the coastal
population. This requires an efficient regional warning system, estimation
of the maximum expected tsunami flood height, preparation of the population
to evacuate, and drawing up of local and regional emergency plans. In order
to produce an efficient evacuation plan, we have to assess the number of
people at risk, the potential evacuation routes, the safe areas and the
available time to evacuate. However, this essential information is still
lacking in the French West Indies emergency plans. This paper proposes a
model of tsunami evacuation sites accessibility for Martinique directly
addressed to decision makers. It is based on a population database at a
local scale, the development of connected graphs of roads, the
identification of potential safe areas and the velocity setting for
pedestrians. Evacuation routes are calculated using the Dijkstra's algorithm
which gives the shortest path between areas at risk and designated
evacuation sites. The first results allow us to map the theoretical times
and routes to keep the exposed population safe and to compare these results
with a tsunami travel time scenario. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|