It might with a road that does not get a lot of traffic, like a rural country road that is not a primary artery for commuter car traffic, because on this road there is likely longer gaps and more often where the motorist does not have to always slow down to 20 mph to pass, but rather can pull into the opposite direction lane to pass.

Even in theory the idea seems like a bad one with traffic moving at 45+ mph, and many times at 55 mph. That speed differential is too great to risk.

I understand what AlmostTrick is saying, and if you had to do it occasionally because you have no other choice then that's the way to do it. But man, to risk this day in and day out would stress me out totally. I couldn't do it.

A route I used to take involved me riding on the centre lane of a highway overpass where traffic on the right lane exited onto a highway, and traffic on the left went straight through. It was only about a 250 m stretch, but cars moving on both side of me at 70+ km/h was unnerving, and was stressed about it every single day.

I personally avoid all such roads with 45+ mph limits, with so much traffic that people would have difficulty passing me. Those types of roads are abundant in my area, but thankfully my commute despite being mostly rural avoids all those roads. The route that I used to take when I first started commuting, aside from passing 3 school zones (really sucks during the school year), also has a large hill on a road that gets a LOT of traffic, especially semi trucks (on a 2-lane no shoulder road) that are barrelling along at 50+. That is NOT fun trying to huff and puff up that hill. So I take a different route now that's only 1 mile longer and less climbing. Sometimes I'll take the old route going home, which means I can fly down that big hill and then turn off soon after, but not in the mornings.

But even so, I've been commuting the same route for nearly 4 years now, and I haven't really felt like any such anger or aggression has been building up over time. Sometimes I see some of the same cars, sometimes not. Sometimes people have to slow down and wait for a few seconds, sometimes not. The wait is never more than a few seconds, and sometimes I'll pull off at a side street to help people pass so they don't have to wait for so long. I usually welcome a break anyway.

I know people don't like to slow down, myself included sometimes when driving my car. But people just have to get over it that there will always be various things on roads that require slowing down momentarily, even for just a few seconds. That's life.