RadTeamSim.Route is a science-based radiation contamination disaster simulation layered on the physical world. Users can enter coordinates for any location worldwide on launch and load a simulation file set created by Radiation Emergency Services. This simulation file translates externally provided modeled radiological contamination into a format that can be used in RadTeamSim.Route. Users then can navigate through areas and receive their dose-rate readings and total dosimetry details upon simulation exit.