When it rains, the riders will have to use more caution. Due to poor visibility The condition of the roads with water inundated. The driver must slow down. Also, slow down for accidents caused in lane opposite or change lanes. Or for any reason, but As a vehicle must reduce speed accordingly to maintain a distance. The driver of the car as well, so that when the brake to reduce speed upward. Characterized phenomenon that happens constantly and make the cars must slow down and eventually stop.