>Two years later, Metro trains keep failing in service


In September 2008, I concluded that Metro’s reliability was terrible. Using their reported breakdowns and delays in May 2008, Metro appeared less reliable than even the worst line in New York City, breaking down about twice as much.

Taking new data from May 2010, Metro’s reliability appears to have deteriorated even more, with twice as many trains being taken out of service for mechanical problems, 30% more trains being removed from service for door problems, and more than three times as many trains that cannot be placed in service due to management failures such as not having railcars or operators available.

On the bright side, there were fewer trains delayed without being taken out of service.

Here’s the coded data and the spreadsheet. The analysis method is described here.


About perkinsms

I'm an engineer and father interested in transit, parking and economics.
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