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Maryland Transportation System Performance Dashboard 2018 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:

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.


Why Did Performance Change?

  • Vehicle emissions continue to decrease nationwide due to improved vehicle technologies and fuels even as VMT has steadily increased since 2014
  • Continued increases in financial support for alternative modes of transportation at the state and local levels improves the convenience and reliability of these modes
  • Through partnerships with Baltimore Metropolitan Council (BMC) and Metropolitan Washington Council of Governments (MWCOG), MDOT implemented emission-reduction strategies in the Baltimore and Washington non-attainment areas to foster transportation alternatives to single occupancy vehicles (SOV)\
  • MDOT continues to support a diversity of emission reduction strategies in air quality non-attainment and maintenance areas through congestion mitigation, ridesharing and commuter incentive programs

What Are Future Performance Strategies?

  • MDOT MAA is purchasing 20 new compressed natural gas buses, with delivery expected in 2018, to support passenger shuttle service from the Consolidated Rental Car Facility to the BWI Marshall Airport
  • In the FY 2018–FY 2023 CTP, MDTA has committed $63.6 million to replace its electronic toll collection system with a Next Generation system that will substantially increase the capacity for handling Video Tolling and citations, enabling MDTA to reduce traffic delays and emissions at toll plazas over time
  • Work with State Agency and other partners to achieve Electric Vehicle and Electric Vehicle Supply Equipment (EVSE) goals
  • In 2016, MDOT MPA was awarded a $978,302 grant under EPA’s  Clean Diesel Program to replace or repower up to 26 pieces of cargo handling equipment at the Port of Baltimore
  • MDOT MVA continues to work with MDE to ensure compliance with State emissions regulations and continues to monitor the number of registered vehicles in non-attainment counties to ensure VEIP testing compliance
  • MDOT is leading the State’s efforts on emerging connected and autonomous vehicle technologies that have the potential to significantly reduce traffic incidents while enhancing the capacity and efficiency 
    of the transportation system