A relaxing improvement for the driver
Many times while using waze,there is a long pause in the directions because nothing happens on the road. A "waiting tone" or additional speaking options by the app could remind us that the app is still running and that everything is ok. It could be stressful sometimes to think that the app has lost contact with you and you're in the middle of nowhere. I also thought it could be a funny tribute to all stressed out people while being in the road.