That's because the time it takes to get to work on a bicycle is not time she wishes she could have for something else. One is 19.8 miles, the other is 21 miles. The longest route is, of course, the most enjoyable because of less traffic. She'll bike to work two or three days a week, once school is out for the summer and school buses are off the road.
Weather is a deciding factor in the morning.
Some planning is required. At the beginning of the week, Barter stores three sets of dress clothes at the office. Most bike commuters don't have as far to go. The average distance traveled by Americans who bike to work is 12 miles, according to the Federal Highway Administration. Tuesday is National Bike to Work Day.