Users Guide - the Virginia Modeling, Analysis and Simulation Center

Real Time Evacuation Planning Model (RtePM)A Decision Support Tool for Emergency Managers and First RespondersThe Selected Roads screen provides the following information:Name: name of the roadwayFree flow Speed: the average speed of traffic in a freeflow pattern in miles per hourFunctional Class: corresponds to the filters described aboveLanes: how many lanes each directionSpeed Limit: posted speed limits on the roadway per direction.A user may desire to remove a road from the evacuation network. This is accomplished by choosing the“Remove” tool on the “Selected Roads” sub tab and then selecting the desired roadway(s) to beeliminated from the simulation (Figure 26). The area removed will no longer be shaded. Similar to the“Add” button, roads may be deleted via the Freehand Polygon, Bounding Box or Point selection.Figure 26 -- Remove Road ToolsAll road data can be removed by selecting thebutton.Evacuation End PointsEvacuation End Points can be selected and weightings for their use may be defined to attempt toaccurately reflect the way people leave the area selected. Evacuation End Points use the sameiconography as Evacuation Area and Selected Roads for adding and removing data from the scenario.Evacuation End Points also applies the same filters as Selected Roads. Active endpoints are displayed onthe map as yellow circles (Figure 27). Inactive endpoints are greyed out. To activate them, click the boxnext to the roadway of choice.End Points are made “Active” by clicking the box next to its name. Active endpoints are included in thescenario and those with blank check boxes are not. Of the active endpoints, a user may assign weights tothem to make those endpoints more desireable than another. This allows a user to emphasize the impactsof some routes. By default all end points are weighted equally and may be changed by double clickingthe weight with the left mouse button and entering the new value.Note: To avoid conflicts when defining a road networks, End Point Assignment “Percentages” under theEvacuation Area tab should not be used in conjunction with Evacuation End Points “Weights” under theRoads tab.17