Abstract Johor is one of the states in Malaysia that records high accident statistics, especially on Federal Route FT050, Batu Pahat-Ayer Hitam. One elements causing an attitude a driver who drives too fast and ignores warning speed limit signs. The study aimed to determine whether signboard’s impact driving at before- after-study locations. GPS DG 200 was used record data 50 trips Pahat Ayer D...