Route safety depends greatly on the time of day and the day of the week. Too much to expect from software programmers that use a auto produced database.
I was surprised though with my Garmin GPS in Germany where it provided a unique route for a pedestrian that was quite different than for a car as it had a database that showed areas restricted to pedestrians and bicyclists. My Garmin RV Trucking unit is also better than any other routing application as I could input the total length of my tow vehicle and a trailer and it would route me to avoid turns or U-turns that could not be made with a trailer in tow and there is routing that avoids low underpasses if that is a concern.