| 摘要 |
A computing device receives an indication of a change in constraint data 802, such as a change in time of an event, the change altering a vehicle-external factor used to determine at least one of a time, cost, intermediate waypoint, origin, and destination constraint of an upcoming user route. An alternate route for the user is determined 806 in accordance with the constraint, as altered. An update to a mobile device of the user indicating the alternate route is then sent 808. A mobile device of a user can receive, from the user, a contextual constraint specifying an element of external constraint data to be tested and a value against which the element is to be tested, such as temperature. A route constructed satisfying the contextual constraint, and when an external constraint data is changed, display a received message indicating a proposed update to the route. The computing device may be a ride sharing server. |
