Cab drivers spot tourists a mile away. Most cabs will also post their rates on the window. The tourmobile is a two car, blue and white tram that runs continuously around the Mall and Arlington Cemetery with service to Mount Vernon. This is a very convenient way to view Washington's major attractions. You purchase one ticket good for the day.
Prices vary depending on service.
It is rather scarce in the District. Parking enforcement however, is abundant. Unlike California, painted curbs which relay the same information, is rare. There won't be any signs that tell you this.