The Shape of My Commute, part 2

After collecting data for a couple of weeks, and throwing out the worst of the bad data days (why does Selenium in Firefox crash out so often? to be determined...), I now have this:

The blue line is my commute tolerance (currently at 40 minutes).

The actual numbers (e.g., Google Maps estimates) feel low. I realize that time spent sitting in traffic seems longer than it actually is, but I would have guessed +5 minutes at peak times.

In the past I've tried to keep track of my actual commute times, but lost patience after taking a few samples. Maybe it's now time to revive that practice and do some "reality vs. Google maps estimates" validation.


Part 1