We were on our way home in the Allentown, PA area and we experienced a dangerous driver with his truck. The driver was driving a tractor trailer missed his turn and decided to stop dead in the middle of a two lane road and back up and turn around. Not only was it dangerous to the drivers in front of him and behind him but he almost took out a telephone poll and a house. Poor poor judgement and total disregard for other drivers. His # on the truck was 03740