I don't know... I do ride some parts of my ride on the street and sometimes it's scary how close some of the cars come to me. They don't even bother to even move a little into the middle of the street for a safe pass. If I would loose just a bit of balance and swerve a little to the left I'd be toast during such encounters.
At one point I had my trailer with my son in it, which was sporting a huge flag, and I was riding on the street and from behind comes a car and was inches away from clipping my sons trailer. I was so pissed I was trying to catch up with the a-hole at the next red light, but it turned green before I was able to get there. I would have beat the living **** out of him/her if I would have made it. I'm very protective when it comes to my kids and have an extremely short fuse when my kids are in danger.
Thomas