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Facsimile of manuscript of Peter Charles L'Enfant's 1791 plan for the federal capital city (United States Coast and Geodetic Survey, 1887). [2] L'Enfant's plan for Washington, D.C., as revised by Andrew Ellicott in 1792 Thackara & Vallance's 1792 print of Ellicott's "Plan of the City of Washington in the Territory of Columbia", showing street names, lot numbers, depths of the Potoma River and ...
In January 2010, Google begins to introduce the 3rd generation of cameras, allowing better quality in the captured images. In mid-June 2010, Google added blue dots to its maps that display user-submitted images in all locations around the world, including land areas where Street View is not available and bodies of water.
DC Streetcar - DDOT owns and is currently the sole financier of DC Streetcar, a surface light rail and streetcar network under construction in Washington, D.C. [12] Great Streets Initiative - DDOT is a lead agency in the District of Columbia's Great Streets Initiative, which seeks to revitalize critical transportation and retail corridors ...
A traffic enforcement camera (also a red light camera, speed camera, road safety camera, bus lane camera, depending on use) is a camera which may be mounted beside or over a road or installed in an enforcement vehicle to detect motoring offenses, including speeding, vehicles going through a red traffic light, vehicles going through a toll booth ...
A traffic camera is a video camera which observes vehicular traffic on a road. Typically, traffic cameras are put along major roads such as highways, freeways, expressways and arterial roads, and are connected by optical fibers buried alongside or under the road, with electricity provided either by mains power in urban areas, by solar panels or other alternative power sources which provide ...
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U.S. Route 29 (US 29) enters Washington, D.C., via the Key Bridge from Arlington County, Virginia, and exits at Silver Spring, Maryland.It predominantly follows city surface streets, although the portion of the route from the Key Bridge east to 26th Street Northwest is an elevated highway better known as the Whitehurst Freeway.
Avenues named for 48 of the 50 U.S. states plus Puerto Rico crisscross this grid diagonally, and where the avenues intersect, traffic circles often occur. Many circles are named for American Civil War generals and admirals, while several neighborhoods take their names from nearby circles. There are approximately 36 roundabouts currently in the ...