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Game Theoretic Best-Response Dynamics For Evacuees' Exit Selection

Author

Listed:
  • HARRI EHTAMO

    (Systems Analysis Laboratory, Helsinki University of Technology, Espoo, Finland)

  • SIMO HELIÖVAARA

    (Systems Analysis Laboratory, Helsinki University of Technology, Espoo, Finland)

  • TIMO KORHONEN

    (VTT Technical Research Centre of Finland, Espoo, Finland)

  • SIMO HOSTIKKA

    (VTT Technical Research Centre of Finland, Espoo, Finland)

Abstract

We present a model for evacuees' exit selection in emergency evacuations. The model is based on the game theoretic concept of best-response dynamics, where each player updates his strategy periodically by reacting optimally to other players' strategies. A fixed point of the system of all players' best-response functions defines a Nash equilibrium (NE) of the game. In the model, the players are the evacuees and the strategies are the possible target exits. We present a mathematical formulation for the model and show that the game has a NE with pure strategies. We also analyze different iterative methods for finding the NE and derive an upper bound for the number of iterations needed to find the equilibrium. Numerical simulations are used to analyze the properties of the model.

Suggested Citation

  • Harri Ehtamo & Simo Heliövaara & Timo Korhonen & Simo Hostikka, 2010. "Game Theoretic Best-Response Dynamics For Evacuees' Exit Selection," Advances in Complex Systems (ACS), World Scientific Publishing Co. Pte. Ltd., vol. 13(01), pages 113-134.
    • Handle: RePEc:wsi:acsxxx:v:13:y:2010:i:01:n:s021952591000244x
    DOI: 10.1142/S021952591000244X
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    References listed on IDEAS

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    1. Fudenberg, Drew & Levine, David, 1998. "Learning in games," European Economic Review, Elsevier, vol. 42(3-5), pages 631-639, May.
    2. Drew Fudenberg & David K. Levine, 1998. "The Theory of Learning in Games," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262061945, April.
    3. Drew Fudenberg & Jean Tirole, 1991. "Game Theory," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262061414, April.
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    Cited by:

    1. Haghani, Milad & Sarvi, Majid & Shahhoseini, Zahra, 2019. "When ‘push’ does not come to ‘shove’: Revisiting ‘faster is slower’ in collective egress of human crowds," Transportation Research Part A: Policy and Practice, Elsevier, vol. 122(C), pages 51-69.
    2. Haghani, Milad & Sarvi, Majid, 2019. "Laboratory experimentation and simulation of discrete direction choices: Investigating hypothetical bias, decision-rule effect and external validity based on aggregate prediction measures," Transportation Research Part A: Policy and Practice, Elsevier, vol. 130(C), pages 134-157.
    3. Tian, Huan-huan & Wei, Yan-fang & Dong, Li-yun & Xue, Yu & Zheng, Rong-sen, 2018. "Resolution of conflicts in cellular automaton evacuation model with the game-theory," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 503(C), pages 991-1006.

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