The Maryland Traffic Volume Maps depict the Annual Average Daily Traffic (AADT) at various locations on Maryland’s roadways by county. Traffic Volume data is collected from over 3000 program count stations and 79 ATR’s, located throughout Maryland. Program count data is collected (both directions) at regular locations on a three year cycle (one-third of these are counted each year). The other two-thirds are factored based on the past yearly growth of an associated ATR. Counters are placed for 48 hours on a Monday or Tuesday and are picked up that Thursday or Friday, respectively. The ATR and toll count data is collected on a continuous basis. The Toll station data is provided by Maryland Transportation Authority.
All the maps below are in Adobe Acrobat format. If you have Acrobat installed
on your computer, click the county you would like to view.
The 2007 Maryland Traffic Volume Map is also available for downloading in Adobe Acrobat format. Right click on the file below and save to your computer.
If you would like a complete paper copy of the 2007 Maryland Traffic Volume Maps
please contact:
Maryland State Highway Administration
Highway Mapping Team
707 North Calvert Street
MS C-607
Baltimore, Maryland 21202
Phone: (410) 545-8747
E-Mail: maps@sha.state.md.us
Each complete map booklet will cost $5.00 plus shipping and handling.
