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State Highway Administration
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Mobility Report

The Maryland State Highway Mobility Report summarizes the state of congestion and reliability on the highway system and how SHA policies, programs and projects are making a difference. Click Here To View The SHA Mobility Report

Congestion Assessment

Congestion assessment maps show levels of congestion on all major state roadways in Maryland, on an average weekday, during the morning (AM) and evening (PM) peak hours using a combination of Probe and HCM based analysis.

Click here to view the the congestion assesment map of pdfs

Annual Vehicle Miles of Travel Report

This report contains Annual Vehicle Miles of Travel (AVMT) by County and Functional Classification for State, County, and Municipal Highway Systems.
Click here to view the annual vehicle miles of travel report

Traffic Monitoring System (TMS)

The TMS provides data, statistics, reports and maps associated with the SHA’s traffic count program.

Click here to view the TMS website

Annual Highway Mileage Reports

The annual mileage reports show miles, lane miles and Annual Vehicle Miles of Travel (AVMT) for all State, County and Municipally maintained roads in Maryland.

Click here to view the annual highway mileage report

Highway System Mileage by Year Report (1980 - present)

This report contains Highway Miles and Lane Miles by Year for State, County, and Municipal Highway, from 1980 – present.

Mileage Inside the Municipalities Reports

This annual report summarizes mileage of state, county and municipal roadways, as well as the mileage of roads within a municipality.

Maryland Interstate and Beltway Mileage Report

This report contains Highway Miles for Maryland’s Interstate Highway System by Route Number and mileage on the Baltimore and Capital Beltways.

Highway Location Reference (HLR)

The HLR lists provide mile points of intersecting features and commonly requested data elements for all roads maintained by the SHA and the Maryland Transportation Authority (MdTA).

Highway Performance Monitoring System (HPMS)

HPMS is a nationwide FHWA road inventory database that is used to report on the extent, condition, performance, use, and operating characteristics of the Nation’s highways.
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