Maryland Highway Traffic Trends summarize State traffic volume data.
There are permanent, continuous counting ATR stations throughout Maryland and seven continuously operating toll facilities. Trend reports contain tabulated data from these stations.
The data in Maryland Highway Traffic Trends was collected by the Data Services Engineering Division (DSED) of the Maryland Department of Transportation State Highway Administration (MDOT SHA) Office of Planning and Preliminary Engineering (OPPE).
For Traffic Trends, stations were grouped based on functional classification; an additional summer seasonal group reflects recreational traffic patterns during summer months.
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