The electronic system provides early warning of obstruction, e.g. a second vehicle. The system receives an input from a distance measuring system that can be e.g. in the form of a laser that generates a scanning beam that is reflected of any object. The motion of the vehicle around a bend is determined by the distance measured to two points on the object. The warning signal is determined based upon the distance, the radius of the vehicle path and speed of the vehicle. Audio and visual warnings can be emitted.
