With the D.C. Metrorail’s fares set to increase on Sunday, it piqued my interest in precisely how the system determines charges and the nature of the changes. I decided to take a look at exactly what pattern the famously unpredictable fares took. While most news reports have reported suburban riders would experience the largest absolute increases, my analysis shows they continue to enjoying the lowest cost per mile of all riders, well below the cost of automobile use.

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We all know the D.C. Metro is busy. But do you know how many people use your station, or how use has changed since the system opened? Take a look at some of the trends and look up your station using my data on a new social networking site.

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