Originally Posted by mtalinm

Cyclists move at highly variable speeds. This may seem obvious, but compared to cars there is a lot of heterogeneity in how fast cyclists ride. Sure, there is the occasional leadfoot or slowpoke, but for the most part drivers keep up with each other. We cyclists are all over the map. Many of us are happy to plod along at 7-8 mph, while others are looking to maintain 13-15. And of course you have the occasional crazee trying to set Strava records downtown. Because there are rarely two bike lanes side by side, this leads to a lot of us darting into traffic to pass. It hadn't really occurred to me until I was watching from the minivan.

Lastly, I was a lot happier when I started commuting again!