When I ride my bike I would like to let Waze know that I am a hazard to other drivers. Other drivers would be warned when I am close to them. Alternatively, as a car driver, I would like to be able to activate a mode that warns me about bicycles and motorcycles. I think this idea would reduce the number of accidents involving bicycles and motorbikes. This can be extended to other vehicles on the road like tractors, oversized transport vehicles...