I am in a conversation with a CDTA rep on the topic of safe passing. Phone and email. At my request, he shared a portion of the the manual they give to drivers. In it, drivers are instructed to leave 3 feet minimum and 5 feet recommended when passing cyclists and to slow. 5 feet would be luxurious. I get that when operators fully leave the lane to pass. Some do. More often, though, I would guess I get something much less than 5 feet and sometimes less than 3 feet. I thought a diagram would help so I put one together and shared it with the CDTA.
I measured the distance I am comfortable riding from the curb. It’s 2.5 feet, but I put 2 feet in the diagram to be conservative. I measured my on-bike height and width. I measured the width of the lane by my house when cars were stopped. From there I made some guesses. I used the most conservative (smallest) bus measurements from this obviously old reference. Can’t be far off. Busses don’t seem to be getting smaller. I determined mirror height by using dividers on a screen shot of a CDTA bus.
I hope he will better understand that bus drivers can never share a single lane side by side with a bicyclist. Since they have to leave the lane to pass, they might as well give a lot of space. They should also slow. The manual directs it and decreasing speed differential is a big help in reducing road fatalities. I also hope he gets the information to all drivers. Some already know it. Too many do not.
It’s beautiful outside. I am going to go pedal.