Users Guide - the Virginia Modeling, Analysis and Simulation Center

Real Time Evacuation Planning Model (RtePM)A Decision Support Tool for Emergency Managers and First RespondersSometimes automated calculations may choose access points that a user of the system with localknowledge of the road system would consider unrealistic. RtePM allows the user to modify access pointsfor a selected population block via the following steps:To change an access point:Click on the "Access Points" sub tab in the Evacuation Zone tab.Click on the appropriate "Id" in the "Population Block" list. Note: Hovering over the Id willhighlight the respective zone on the map.The right side list view will now be populated with access points from the road network. If thereare no access points shown, then the road network does not support the population blocks chosen.If the right side is not populated after clicking on the Population Block ID, road networks are notyet defined. (See Defining Roads on page 15)Note: Hovering over the row will highlight the access point on the map.Click on the checkbox under the "Active" column to activate/deactivate access points. A checkedbox indicates that the access point will be used in the clearance time calculations. A transparentcircle on the map indicates a non-active access point. Repeat these steps as needed for otheraccess points.Note: These steps assume that population blocks and road networks have already been selected for anevacuation zone. The access points selected will be a subset of the network nodes.Note: If the road network is changed after selecting access points, new candidate access points are notadded to any overridden lists. It is recommended that the population blocks and road networks becompleted and finalized before editing the access points.End Point AssignmentsThe final tab in the Evacuation Zone sub tab is End Point Assignments. Evacuation End Points definewhere evacuees are being sent. End Points are not available until after Roads are assigned. Endpoints aredisplayed as yellow circles on the map. Each yellow circle corresponds to an end point named in thetable. Moving the cursor over end points in the table will highlight their location on the map (Figure 21).Figure 21 - End Point Assignment14