A computer-implemented method includes determining a number of distance points connected to a person at a point in time, scraping a plurality of indexes corresponding to a respective plurality of journey hosts to identify a plurality of journey possibilities for each journey host of the plurality of journey hosts, generating a plurality of reachable locations based on the number of distance points and the journey possibilities, the plurality of reachable locations comprising at least a subset of the plurality of journey possibilities correlated to the number of distance points, receiving location signals generated via a location sensor of a device associated with the person, identifying one or more previous locations of the device based on the location signals, identifying a subset of the reachable locations based on the previous locations of the device, and generating a graphical interface to visually display the subset of the reachable locations on a map.