Distance to Hazard is inaccurate
I have noticed that Waze reports a hazard (car on shoulder) to be 1800 ft away, but it ends up to be about a mile! I know phone GPS location can be ± 20 - 30m. and have read on certain forum posts that this distance is as the crow flies but that can't account for all of that error!
Distance to Hazard is inaccurate