This app would be good for me.
The app, appropriately called WalkSafe, was developed by researchers at Dartmouth Collegeand the University of Bologna in Italy. Using the camera on the back of the phone, it’s able to detect oncoming cars as far as 164 feet away using image-recognition algorithms sophisticated enough to deal with the motion and blur of from a moving phone. When a vehicle is detected approaching at thirty miles per hour or faster, the phone vibrates and an audible warning goes off, letting the distracted user know they have to get out of harm’s way.
I imagine this may be helpful for people whose senses are impaired.