Having proclaimed itself "
America's
Subway," the DC Metro probably is one of the more attractive and efficient
public transit systems in the
U.S. It currently has five color-coded
rail lines and several dozen
bus routes, and provides
mediocre service for those with
physical disabilities. It is generally clean and on-time, but can be
expensive depending on your
destination because it charges more for longer trips. The Metro is run by the Washington Metropolitan Area Transit Authority and monitored by the Metro Transit Police.
I am also working on the Washington DC Metro Project, which has more information about the system.