The pre-revenue operations is actual service simulated along the corridor without passengers and is part of the process of certifying the streetcar’s safety. During this phase, all streetcar vehicles will run their projected hours with projected headways, DC Streetcar officials said in a press release.
Five streetcar vehicles have been tested and drivers trained during the summer on the H Street and Benning Road line. Passenger revenue service will begin once the safety certification process is completed. Eventually, the DC Streetcar will serve 37 miles of lines.

A couple of interesting WebSites are:
and DC Streetcar

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