How do I obtain traffic counts along roadways?
Counts of average daily traffic (ADT) are available for State highways in a map format by contacting the SHA Map Store at 211 East Madison Street, Baltimore, MD or by visiting the State Highway Administration's website. Similar ADT counts along county roadways are available in booklet form from the Department of Public Works and Transportation, Traffic Safety Division at 9400 Peppercorn Place, Largo, MD.
State Highway Administration website

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1. What is the Master Plan of Transportation?
2. What is the existing, or planned, right-of-way for a particular street?
3. What is meant by Adequate Public Facilities?
4. How do I obtain traffic counts along roadways?
5. How can I find out how many accidents occur along a particular roadway?
6. Who can I call about a maintenance problem on a roadway?