A vehicle safety system that applies the brakes to avoid a forward collision. Based on driving speed and distance to the vehicle ahead, determined by radar, a collision avoidance system warns the driver first and stops the car if no action is taken. Advanced systems can apply the brakes when turning the corner.
Cross Path in Front
A cross traffic system alerts the driver that a car or cyclist is coming from the side and about to cross in front. It may also stop the vehicle.
Cross Path from the Rear
The most elementary "rear blind zone assist" is an audible beep when backing up too close to an object. That evolved into a rear camera and later on to a camera with warnings (see below). See
automotive safety systems,
adaptive cruise control,
semiautonomous vehicle and
self-driving car..
Rear Cross Traffic Warning (RCTW)
This example in a Honda uses both audio and visual alerts. When backing up, the driver hears beeps and sees flashing orange arrows on the side the vehicle is approaching. Advanced systems sense pedestrians and cyclists and may even apply the brakes as in forward collision detection.