And for eight-in-10 drivers (84%), the gamble paid off as they managed to get to their destination quicker than what their sat-nav predicted, according to research from the RAC. Popular sat-nav gripes included users complaining that their devices don’t always detect upcoming traffic jams (52%), as well as getting sent down small, narrow roads (44%). Worryingly, one-in-10 (11%) sat-nav users got sent down a one-way street the wrong way, risking a head-on collision. And one fifth (19%) almost got stuck after their sat-nav sent them down a dead end that was hard to reverse out of. “Worryingly, one-in-10 said their sat-navs sent them down a one-way road the wrong way, risking a head-on collision.