Passenger preference route and alternative destination estimator

A method of estimating alternative destinations for a user based on an intended user destination. A set of destinations is created and user route preference data (e.g. time-to-destination, price, walking time, accessibility, legality, and/or energy consumption) is used to rank a set of routes towards the set of destinations. The navigation of an autonomous vehicle is controlled based on at least one of the ranked routes. Determining the set of routes may comprise performing a plurality of searches, in parallel, through a road network towards the set of destinations, wherein the plurality of searches comprises up to four searches based on a different operational metrics (e.g. different cost functions). Systems and computer program products are also provided.