Adam put together a nice map showing how far various neighborhoods are from the subway. He didn't add a legend, but our guess is that green means 5 blocks, yellow means 10 blocks, and orange means 15 blocks. Looking at the map, it's hard not to be impressed by the great mass transit coverage we have in the city. Except for dead zones in Eastern and Central Queens, and Southeast Brooklyn, almost all of NYC is within walking distance of a subway. If you throw buses into the mix, we probably have 100% mass transit coverage within five blocks of any home or business. That's not bad!