Evacuation route selection based on tree-based hazards using LiDar and GIS

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Title: Evacuation route selection based on tree-based hazards using LiDar and GIS
Authors: Laefer, Debra F.
Pradhan, Anu
Permanent link: http://hdl.handle.net/10197/2307
Date: Apr-2006
Abstract: Falling trees pose a great hazard to the safe and uninterrupted use of the road transportation system, during storm events. The present process of manually identifying potentially hazardous trees is laborious and inefficient. This paper presents a novel methodology for automating the tree threat identification process by using airborne laser altimetry data and a Geographical Information System (GIS). This methodology has the potential to be used for selecting the best possible evacuation routes based on tree hazards. The proposed method harnesses the power of spatial analysis functionality provided by existing GIS software and high-quality, three-dimensional (3D) data obtained from an airborne laser scanning system. This paper highlights the benefits related to using (a) height calculation of tall objects, (b) identification of hazardous objects, and (c) object identification from irregular 3D Light Detection And Ranging (LiDAR) point data over the currently employed manual methods.
Funding Details: Other funder
Type of material: Journal Article
Publisher: American Society of Civil Engineering (ASCE)
Copyright (published version): 2006 ASCE
Keywords: Geographic information systems;Roadside hazards;Highway maintenance;Trees;Transportation management;Highway safety;Lasers;Evacuation
Subject LCSH: Evacuation of civilians
Tree hazard evaluation
Geographic information systems
Optical radar
Traffic engineering
DOI: 10.1061/(ASCE)0733-947X(2006)132:4(312)
Language: en
Status of Item: Peer reviewed
Appears in Collections:Urban Institute Ireland Research Collection
Critical Infrastructure Group Research Collection
Civil Engineering Research Collection

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