APPLICATION OF THE ECONOMIC OPTIMIZATION TO THE FLOOD DEFENCE SYSTEM OF THE NEW ORLEANS METROPOLITAN AREA

2009 ◽  
Author(s):  
S. N. Jonkman ◽  
M. Kok ◽  
M. van Ledden ◽  
J. K. Vrijling
Keyword(s):  
New Orleans ◽  
Metropolitan Area ◽  
Economic Optimization ◽  
Defence System ◽  
Flood Defence

River Thames - removable flood barriers

1972 ◽  
Vol 272 (1221) ◽  
pp. 259-274
Keyword(s):  
Defence System ◽  
River Thames ◽  
Flood Defence ◽  
Severe Flooding

Following upon the severe flooding from an exceptional tide cum surge in February 1953 a removable flood barrier in Long Reach was considered as the basis of a flood defence system compatible with the navigation interests yet avoiding the high cost of bank raising in the metropolis. Three designs of barrier were developed and costed, each embodying two 150 m wide navigation openings. The preferred system incorporated drop gates supported on high towers above shipping when not in use. The navigation authorities ruled that an unobstructed opening at 425 m was necessary and a new design exercise found in favour of retractable barrier structures but at increased cost with less reliability in performance. The formation of the Greater London Council led to a wider investigation of possible barrier sites and the lesser use by shipping of reaches above the Royal Docks permitted narrower openings. Schemes for some six different sites and over 40 variations in span arrangement were investigated and led to a proposal for four 60 m navigation openings in Woolwich Reach which might be closed by a form of rising section gate. This has proved to be the cheapest, most reliable and quickest to install of all the schemes investigated and is now the basis of design for contract.

Methodology to Establish Hurricane Evacuation Zones

2005 ◽  
Vol 1922 (1) ◽  
pp. 129-137 ◽  
Author(s):  
Chester G. Wilmot ◽  
Nandagopal Meduri
Keyword(s):  
Information Systems ◽  
Geographic Information Systems ◽  
New Orleans ◽  
Metropolitan Area ◽  
Geographic Information ◽  
Hurricane Evacuation ◽  
Evacuation Modeling ◽  
Emergency Situations ◽  
North Shore ◽  
The North

A review of practice in hurricane evacuation modeling reveals that the criteria determining the delineation of hurricane evacuation zones have not been clearly defined. In addition, there is no recommended procedure with which to establish hurricane evacuation zones once criteria have been accepted. A set of criteria has been adopted in this paper to design a procedure that mechanically establishes a recommended set of hurricane evacuation zones for an area. The procedure, which is based on a geographic information systems platform, is described, and its use is demonstrated for establishing hurricane evacuation zones for the northern part of the New Orleans, Louisiana, metropolitan area on the north shore of Lake Pontchartrain. The procedure can be applied to any area, and although it is specifically directed at identifying evacuation zones for hurricanes, it could be used for any emergency in which flooding is the major hazard, or it could be adapted to other emergency situations for which evacuation is an appropriate response.

scholarly journals Optimal planning of flood defence system reinforcements using a greedy search algorithm

2021 ◽  
Vol 207 ◽  
pp. 107344
Author(s):  
Wouter Jan Klerk ◽  
Wim Kanning ◽  
Matthijs Kok ◽  
Rogier Wolfert
Keyword(s):  
Search Algorithm ◽  
Optimal Planning ◽  
Greedy Search ◽  
Defence System ◽  
Flood Defence

The Wrath of Hurricane Katrina

Home Free ◽  
2020 ◽  
pp. 18-32
Author(s):  
David S. Kirk
Keyword(s):  
Hurricane Katrina ◽  
New Orleans ◽  
Residential Mobility ◽  
Metropolitan Area ◽  
Gulf Coast ◽  
Prisoner Reentry ◽  
Geographic Patterns ◽  
Residential Change ◽  
Housing Units

The chapter describes the devastation to New Orleans and the Louisiana Gulf Coast inflicted by Hurricane Katrina. In Orleans Parish, 71.5 percent of housing units suffered some damage following Hurricane Katrina, with 42 percent severely damaged. The extent of housing destruction was similar in adjacent parishes of the wider New Orleans metropolitan area. Consequently, many prisoners released soon after Katrina could not go back to their old neighborhoods, as they normally would have done. Typically, 75 percent of individuals released from prison return to their former parish of residence. In the first six months after Katrina, just 50 percent returned to their home parish. Thus, this chapter shows that Hurricane Katrina fundamentally altered prevailing geographic patterns of prisoner reentry in Louisiana, affecting residential change and residential mobility for this population.

Sign in / Sign up

Export Citation Format

Share Document