• Title/Summary/Keyword: horizontal queue model

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Developing algorithms for providing evacuation and detour route guidance under emergency conditions (재난.재해 시 대피 및 우회차량 경로 제공 알고리즘 개발)

  • Yang, Choong-Heon;Son, Young-Tae;Yang, In-Chul;Kim, Hyun-Myoung
    • International Journal of Highway Engineering
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    • v.11 no.3
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    • pp.129-139
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    • 2009
  • The transportation network is a critical infrastructure in the event of natural and human caused disasters such as rainfall, snowfall, and terror and so on. Particularly, the transportation network in an urban area where a large number of population live is subject to be negatively affected from such events. Therefore, efficient traffic operation plans are required to assist rapid evacuation and effective detour of vehicles on the network as soon as possible. Recently, ubiquitous communication and sensor network technology is very useful to improve data collection and connection related emergency information. In this study, we develop a specific algorithm to provide evacuation route and detour information only for vehicles under emergency situations. Our algorithm is based on shortest path search technique and dynamic traffic assignment. We perform the case study to evaluate model performance applying hypothetical scenarios involved terror. Results show that the model successfully describe effective path for each vehicle under emergency situation.

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