All states, including the District of Columbia, formulate their speed regulations on the basis of some form of the basic speed law. This law specifies that a driver shall operate a vehicle at a speed that is reasonable and prudent for existing conditions, regardless of any other speed limit that may be applicable at a location at any given time.
A driver is responsible for taking both actual and potential hazards into consideration when selecting a speed and for giving due regard to weather, visibility, traffic, roadway width, and condition.
Program at a Glance
Program Title: Speed Study Data and Map
Providing Agency: District Department of Transportation
Type: Planning and Strategy
To formulate their speed regulations on the basis of some form of the basic speed law.
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