A user of a mobile device may use the technique to obtain future location-based situation awareness, e.g., a future location route displayed on the user's mobile device. That future location route comprises the user's future locations through time and space, e.g., a set of planned meetings at successive locations in a geographic area. A service that provides the user's mobile device with the future location route may also alert the user of potential threats to the user's planned activities, such as a restaurant being over-booked. On a permission basis, the user's mobile device may also receive a future location route for at least one other person associated with the user in a social network. The other person's future location route may be overlaid on the user's route so that one or both individuals receive advance notifications of their potential to have their respective paths “crossing” during a future time period.