Apps for the Road: The days of navigating a family road trip with just a map and your wits are over

摘要

SCORES OP SMART-PHONE apps make locating gas stations, roadside eateries and last-minute hotel rooms easy. But you'll get even more mileage from our favorites. They'll steer you around traffic jams, help you manage an emergency, and point you toward scenic hiking trails. All are free.