Tuesday, September 20, 2022

CSI Suspect Mapping

Feasible Route Mapping is an interactive map that can be used to find out all the possible routes that could be taken from one location to another. The map was designed to be used during criminal investigations to determine all the locations a suspect could have traveled to in a specific time. The map can therefore help investigators to quickly evaluate a suspect's possible movements in and around a crime. 

Enter a starting point and a destination into Feasible Route Mapping and it can calculate the areas that a suspect could have reached within a set time frame, taking into account the suspect's mode of transport. An isocrone map is then displayed which shows the reachable areas. This isochrone layer includes time interval steps which indicate the length of time it would have taken to reach each point in the possible travel areas. 

The map uses the Valhalla open-source routing engine to calculate possible routes and the isochrone layer. The map was created by Mario Širić as part of his master's thesis. You can learn more about the application and view its code on the project's GitHub page.

You can find more examples of visualizing travel time under the Maps Mania isochrone tag.

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