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 -