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Maryland Transportation System Performance Dashboard 2016 Annual Attainment Report Highlights

Goal: Environmental Stewardship:     


  • Limit the impacts of transportation on Maryland's natural environment through impact avoidance, minimization and mitigation.
  • Employ resource protection and conservation practices in project development, construction, operations, and maintenance of transportation assets.
  • Implement transportation initiatives to mitigate the impacts of climate change and improve air quality.
  •  Support broader efforts to improve the health of the Chesapeake Bay, protect wildlife, conserve energy, and address the impacts of climate change.

Select a Measure:


What We Measure:

Average daily tons of on-road vehicle emissions contributing to ozone in the Baltimore and Washington metropolitan regions within Maryland.

Why We Measure:

The Baltimore and Washington regions are currently classified as ozone non-attainment areas under the Clean Air Act.


Performance Progress:

  • A wide array of transportation sector-related emission reduction strategies including transit, ridesharing, cleaner fuels and vehicle engine technologies, as well as Maryland's Vehicle Emissions Inspection Program have all helped significantly reduce harmful emissions from vehicles.  Reducing vehicle emissions improves air quality in compliance with federal regulations and provides health benefits for Maryland residents. MDOT programs supporting TDM, transit, ridesharing, bicycling and walking, as well as projects that reduce roadway congestion all support air quality goals.

Future Strategies:

  • Through the Transportation Emission Reduction Measures (TERMs), MDOT supports the reduction of emissions in air quality non-attainment and maintenance areas in Maryland through congestion mitigation, ridesharing and commuter incentive programs ($24.0 million in dedicated funding in the FY 2016–FY 2021 Consolidated Transportation Program)
  • MDOT has worked with the Baltimore Regional Transportation Board (BRTB) throughout the process of developing their new 25-year long-range transportation plan, Maximize2040, which will set the region on a sustainable path of improving air quality over the next 25 years
  • The Port of Baltimore is continuing to successfully apply for Diesel Emission Reduction Act (DERA) grant funds, which are administered by the EPA. Since 2008, the Port has utilized DERA funding to replace and/or provide idle reduction and retrofit technologies from older engines.  Overall, the program has positively impacted 600 communities by addressing emissions from 60,000 engines. In 2015, The Port of Baltimore was awarded another $870,000 which will be used to support vehicle owner purchases of another 25 cleaner, model year 2011 or newer, dray trucks. This replacement project will reduce annual carbon dioxide emissions by 9.5 tons. In addition, the upgrade will reduce nitrogen oxide emissions by 31.73 tons and particulate matter emissions by 1.09 tons
  • The FY 2016–FY 2021 CTP dedicates $73 million in funding for MARC toward the procurement of eight new diesel locomotives meeting all EPA emission requirements and the overhaul of six other locomotives to help enhance operational efficiency