Users Guide - the Virginia Modeling, Analysis and Simulation Center

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Real Time Evacuation Planning Model (RtePM)A Decision Support Tool for Emergency Managers and First RespondersNote: If seasonal population areas overlay multiple population blocks or fall outside the evacuation zone,the seasonal population will be distributed equally across zones including an equal portion for the areaoutside the evacuation zone.Global ParametersFigure 32 -- Seasonal PopulationsGlobal Parameters (Figure 33) allow planners to define key aspects of an evacuation scenario. Eachparameter is further defined below.Figure 3321
Real Time Evacuation Planning Model (RtePM)A Decision Support Tool for Emergency Managers and First RespondersGlobal ParametersPopulation Data Sources: Where the populations used in the simulation are derived fromooNighttime (Census): Census DataDaytime/Work Week (Land Scan): ORNL Land Scan Data represents an ambientpopulation (average over 24 hours)Refuge of Last Resort Hour: the hour of response during the scenario in at which un-evacuatedcitizens will seek refuge in shelters designated refuges of last resort.Model Type: change the type of simulation calculation algorithmooDeterministic Model: algorithm provides a single set of simulation results using fixedinputsProbabilistic Model: algorithm generates a user-designated number of runs usingprobability distributions for simulation inputsNumber of Probabilistic Runs: set the number of probabilistic runs. A new set of probabilisticinputs will be generated for each run.Traffic Incident ModelingAllows user to disable or enable various rates of traffic incident modeling.Simulation Run OptionsModified Roads: Choose if the modified roads are in useSeasonal Population: Choose if the seasonal Population is in useBackground Traffic: Background traffic simulates vehicles using the roadways but not directlyparticipating in the evacuation. Background traffic can be defined asooooNone: No background traffic is on the roadLow: Minimal background traffic is presentMedium: Average background traffic is presentHigh: Significant background traffic is presentExecuting a ScenarioAfter entering all scenario data, users may execute the scenario. The scenario must first be saved byclicking the “Save” button on the bottom right of the display. Once saved, the scenario can be executedby clicking the “Calculate” button (Figure 33.1). If the save step is skipped, an error message will bedisplayed, prompting the planner to save the scenario.22
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Users Guide - the Virginia Modeling, Analysis and Simulation Center

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