Originally Posted by taz777

You could get to a point where you are driving whilst constantly looking at your phone all the time to see if the Waze app is warning you of something.

There is also another solution to this question. Many car manufacturers have already adopted technology to recognise cyclists and pedestrians via cameras mounted on the windscreen of the car, coupled to appropriate software systems. On my car, for example, the onboard cameras will detect pedestrians and cyclists ahead of me and monitor my approach speed towards them. If the computers determine that I am on a collision course with them then the car will alert me with a visual and audible notification. If I don’t react then the car will apply the brakes as best as it can to avoid a collision with a pedestrian or cyclist.

I think this is an excellent system and does not rely on having a data connection. It does not distract you in any way during normal driving. It just sits there watching the road ahead and only makes its presence felt when you are on a collision course.