An overhead train of the Chicago 'L' system (Photo: Greg Kieca/Shutterstock)
Walk Score has ranked the 25 largest US cities by the usefulness of their transit systems. New York sits at the top of the list released by the website, which otherwise provides its users with information about the most walkable inner-city neighborhoods. San Francisco came second in the public transit rankings, with Boston, Washington, D.C. and Philadelphia rounding out the top five.
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