I was commuting during 2008, before I began to participate in century rides. It allowed me to ride 100 to 150 miles per week depending on how I split my car use and cycling. I enjoyed commuting, but would not want to depend on riding every day.
I changed jobs this year and have not been commuting. It's a 35 mile one-way drive. I could commute by bike with the use of an express bus that helps me avoid 9 miles of roads that are too dangerous for cycling. The remaining 26 miles are a reasonable combination of safe roads and MUP. I have a shower at work.
I could see myself commuting two or three days a week once the worst of winter is over and I can do most of my riding with some daylight. It would provide me with two hours of cycling before work and another two hours after work. Doing this several days a week would allow me to double my overall mileage.
Is commuting a worthwhile form of training?