WNYC just created a fantastic transit calculator map for travel time from borough to neighborhood to zipcode in New York City. Just type in a desired address, and you can see average travel times to anywhere in the five boroughs. This is my average travel-time living on East Broadway on the Lower East Side. The red colors indicate a less than ten minute commute, ranging from purple showing over and hour and a half travel time.
This is a great tool if you're looking for a new apartment in a new neighborhood, but aren't sure about how long you'll spend in transit during your work commute.
Seeing the clarity of the regional images led me to work up images for cities, too. Here are three favorites: Istanbul, Tokyo and New York. I like these in particular because of their uniqueness in data quality, leavened by my own qualitative taste. I hope you enjoy them. You can see more cities on our Flickr page.
R.I.P. Posterous 5/1/2013
I didn't attend the funeral, but I sent a nice letter saying I approved of it. - Mark Twain