One of the above usually works, particularly the edit town, select edit home town, edit something on a community lot or vacant house, even if it is just to move one object and then put it back in the same place. Then select return to game.
If this does not work. Did you save immediately prior to travelling? If you did, and you are allowed to return to this save then it should load on the second attempt. It is rare for this to happen on repeated games.