i have to take a bus across the 520 bridge due to no bike/ped lane. luckily there are 4 different buses i can take (my office is really close to the microsoft campus so the local transit makes sure to head this direction). it's just over 6 miles from my house to the montlake bus stop, about 2 or 3 miles across the bridge, then about another 6 to the office from the first stop after the bridge. most mornings i get lazy and bike the first 6 miles to the bus stop, then take the bus almost all the way to my office, and bike the last mile. in the afternoon i maximize time on the bike.

morning: car - 30-35 min
bus/bike - 45-75 min depending on which bus i take, and how far i want to bike

afternoon: car - 45-75 min traffic is usually brutal
bus/bike - 60-75 min depending on how quickly a bus comes along