Development of a time-dependent hurricane evacuation model for the New Orleans area : research project capsule.

Wilmot, Chester; Louisiana Transportation Research Center

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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

i

Development of a time-dependent hurricane evacuation model for the New Orleans area : research project capsule.

2008-08-01
By Wilmot, Chester

[PDF-268.54 KB]

English

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Details:

Creators:

Wilmot, Chester
Corporate Creators:

Louisiana Transportation Research Center
Corporate Contributors:

Louisiana. Dept. of Transportation and Development ; Louisiana State University (Baton Rouge, La.)

Louisiana. Dept. of Transportation and Development ; Louisiana State University (Baton Rouge, La.) Less -
Subject/TRT Terms:

[+]

Behavior Data Collection Evacuation Evacuation Of Civilians--Louisiana Hurricanes Revealed Preferences Routes And Routing Surveys Time Dependence Traffic Congestion Traffic Engineering Traffic Flow Transportation Planning
Publication/ Report Number:

06-2SS
Resource Type:

Tech Report
Geographical Coverage:

New Orleans (Louisiana)
Corporate Publisher:

Louisiana Transportation Research Center
Abstract:

Current hurricane evacuation transportation modeling uses an approach fashioned after the

traditional four-step procedure applied in urban transportation planning. One of the limiting

features of this approach is that it models traffic in a static manner. That is, link flows are

modeled as the total flow occurring on a link during an analysis period, such as a morning

peak, with no indication of the variation in traffic flow during the period. In addition, static trip

assignment assumes that trips complete the journey from origin to destination during the

analysis period. During a hurricane evacuation, trips can take up to 20 hours, necessitating

long analysis periods if static assignment is used. These two features, long analysis periods

and no indication of the variation in traffic flow during these periods, are serious limitations on

the integrity of the modeling process. Congestion is critical in estimating evacuation

clearance time, evacuation efficiency, and the proportion of evacuees evacuated. Other

differences between ordinary day-to-day urban travel and evacuation travel include uncertainty

of road conditions, the possibility that destinations may change due to road closures or lack of

accommodation, and the fact that an evacuation trip is mandatory rather than discretionary.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:ea8885c01116e41bf02f8135a40be51f2ee35d037f33d59ecc8f51596c805aa8
Download URL:

https://rosap.ntl.bts.gov/view/dot/22282/dot_22282_DS1.pdf
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Development of a time-dependent hurricane evacuation model for the New Orleans area : research project capsule.

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