TY - GEN

T1 - Design and analysis of a fast approximation algorithm for multi-modal emergency evacuation routes in the 3D environment

AU - Ng, C. T.

AU - Chen, T. C.E.

AU - Elalouf, A.

AU - Levner, E.

N1 - Publisher Copyright:
© 2015 Taylor & Francis Group, London.

PY - 2015

Y1 - 2015

N2 - We consider a multi-modal constrained routing problem arising in emergency evacuation situ-ations. Given a three-dimensional geometric structure of the evacuation network related to an area, such as a high-rise building or a city area with tense population, an emergency evacuation route is a sequence of move-ments of people away from the threat or actual occurrence of a hazard (e.g., a fire or a hidden bomb) to a safe exit of the area. The multi-modality condition corresponds to different possible ways and modes of evacuation (ambulances, trucks, helicopters, planes, etc.) and dictates specific demands to the solution algorithms. We provide a new pseudo-polynomial-time dynamic programming algorithm to solve this problem. Based on this algorithm, we construct a Fully Polynomial- Time Approximation Scheme (FPTAS), providing “almost-optimal” solutions in real time.

AB - We consider a multi-modal constrained routing problem arising in emergency evacuation situ-ations. Given a three-dimensional geometric structure of the evacuation network related to an area, such as a high-rise building or a city area with tense population, an emergency evacuation route is a sequence of move-ments of people away from the threat or actual occurrence of a hazard (e.g., a fire or a hidden bomb) to a safe exit of the area. The multi-modality condition corresponds to different possible ways and modes of evacuation (ambulances, trucks, helicopters, planes, etc.) and dictates specific demands to the solution algorithms. We provide a new pseudo-polynomial-time dynamic programming algorithm to solve this problem. Based on this algorithm, we construct a Fully Polynomial- Time Approximation Scheme (FPTAS), providing “almost-optimal” solutions in real time.

UR - http://www.scopus.com/inward/record.url?scp=84960119507&partnerID=8YFLogxK

U2 - 10.1201/b18559-54

DO - 10.1201/b18559-54

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AN - SCOPUS:84960119507

SN - 9781138028142

T3 - Environmental Science and Information Application Technology - Proceedings of the 2014 5th International Conference on Environmental Science and Information Application Technology, ESIAT 2014

SP - 307

EP - 312

BT - Environmental Science and Information Application Technology - Proceedings of the 2014 5th International Conference on Environmental Science and Information Application Technology, ESIAT 2014

A2 - Chan, David

PB - CRC Press/Balkema

T2 - 5th International Conference on Environmental Science and Information Application Technology, ESIAT 2014

Y2 - 7 November 2014 through 8 November 2014

ER -