Using the conservation of mass concept, a novel controlled flow methodology based on a linear programing problem is developed for computing the optimal flow rates for a multi-exit evacuation network. In an emergency situation, the controlled flow design is able to track the values of the walkway density, the number of occupants in nodes and thus assures that the flow from adjacent sources to the source walkways is at their maximum level. Using the DTSP hall room of Universiti Sains Malaysia as a multi-exit network, a simulation of the flow shows that the source walkways are blocked when there is an uncontrolled flow. Hence, very few occupants can make their way into the intermediate walkways and exits. For the controlled flow, the values of occupant density in the source and intermediate walkways gradually approach the critical density, ensuring a maximum flow. The developed methodology is useful for the architects and disaster management authorities who are concerned with the evacuation of building facilities and can be used as a paradigm for future studies.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Optimization based controlled evacuation



    Published in:

    Publication date :

    2019-09-03


    Size :

    26 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Multiobjective Optimization for Multimodal Evacuation

    Abdelgawad, Hossam / Abdulhai, Baher / Wahba, Mohamed | Transportation Research Record | 2010


    Evacuation traffic control optimization method

    LIU ZHENG / LIU JIALIN / LI YAPING et al. | European Patent Office | 2023

    Free access

    Multiobjective Optimization for Multimodal Evacuation

    Abdelgawad, Hossam | Online Contents | 2010


    Simulation-based Optimization Framework for Stage-based Evacuation Planning

    Idoudi, Hassan / Ameli, Mostafa / Nguyen-Van-Phu, Cyril et al. | TIBKAT | 2022

    Free access

    FIRE EVACUATION OPERATION DEVICE FOR GROUP-CONTROLLED ELEVATORS

    HIKITA SHIRO / KAWAI KIYOJI | European Patent Office | 2020

    Free access