This paper describes the methodology and application of the computer model CLEAR (Calculates Logical Evacuation and Response) which estimates the time required for a specific population density and distribution to evacuate an area using a specific transportation network. The CLEAR model simulates vehicle departure and movement on a transportation network according to the conditions and consequences of traffic flow. These include handling vehicles at intersecting road segments, calculating the velocity of travel on a road segment as a function of its vehicle density, and accounting for the delay of vehicles in traffic queues. The program also models the distribution of times required by individuals to prepare for an evacuation. In order to test its accuracy, the CLEAR model was used to estimate evacuation times for the emergency planning zone surrounding the Beaver Valley Nuclear Power Plant. The CLEAR model results compared favorably with estimates prepared by other agencies for the Beaver Valley Plant.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    CLEAR (Calculates Logical Evacuation and Response): A Generic Transportation Network Model for the Calculation of Evacuation Time Estimates


    Contributors:

    Publication date :

    1982


    Size :

    112 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    CLEAR: A Model for the Calculation of Evacuation-Time Estimates in Emergency Planning Zones

    M. A. McLean / M. P. Moeller / A. E. Desrosiers | NTIS | 1983


    A transportation network evacuation model

    Sheffi, Yosef / Mahmassani, Hani / Powell, Warren B. | Elsevier | 1981



    Modeling and Simulating Household Evacuation Behaviors for Evacuation Time Estimates

    An, S. / Cui, N. / Wang, J. et al. | British Library Conference Proceedings | 2009


    Safety of users in road evacuation: the logical framework approach in evacuation planning

    Russo, F. / Rindone, C. | British Library Conference Proceedings | 2008