Sector: Transportation
Document describing methods used to evaluate air quality impacts of the Central Business District Tolling Program in New York City.
Guidance for residents for behavioral changes that can reduce indoor and outdoor air pollution.
FHWA’s CMAQ Toolkit is an online collection of strategies, case studies, and reference materials that helps transportation agencies use Congestion Mitigation and Air Quality (CMAQ) Program funds effectively. Organized by project type—such as transit improvements, travel demand management, freight and diesel strategies, bicycle and pedestrian projects, traffic flow improvements, and alternative fuels—it describes how each strategy works, its air quality and congestion benefits, typical costs, and implementation considerations. The toolkit is designed to support states, MPOs, and local governments in selecting, designing, and communicating transportation projects that reduce emissions and improve air quality.
Website for the Maryland Idle Free MD program, providing a toolkit with communications and outreach materials.
CARB’s MSEI (Mobile Source Emissions Inventory) Modeling Tools page is a hub for California’s official mobile?source emissions models—including EMFAC (on?road vehicles), OFFROAD (off?road equipment), and related utilities. These tools estimate emissions of criteria pollutants, toxics, and greenhouse gases from cars, trucks, buses, construction equipment, lawn and garden equipment, and more, and are used for SIPs, conformity, CEQA, and other regulatory and planning analyses.
EPA’s COBRA (Co-Benefits Risk Assessment) Health Impacts Screening and Mapping Tool estimates how changes in air emissions—especially from energy and climate policies—affect air pollution levels, health outcomes, and related economic benefits across U.S. counties. Users can input emissions changes or select built-in scenarios, and COBRA uses reduced-form air quality modeling plus health impact and valuation functions to produce quick, screening-level estimates of avoided deaths, illnesses, and monetized health benefits, along with maps and tables for communication and planning.
CalEEMod (California Emissions Estimator Model) is a free, statewide land use emissions calculator used to estimate air pollutant and greenhouse gas emissions from development projects in California. It allows planners, consultants, and agencies to input project characteristics (like land use type, size, construction schedule, and operations) and then uses built?in emission factors and default assumptions to quantify construction and operational emissions (e.g., vehicle trips, energy use, area sources). The tool supports CEQA review, air district permitting, and project comparison by providing standardized, transparent emission estimates for proposed developments.
Website for the Complete Streets initiative. Complete Streets approach integrates people and place in the planning, design, construction, operation, and maintenance of our transportation networks. The National Complete Streets Coalition works to ensure streets prioritize safety over speed, balance the needs of different modes, and support local land uses, economies, cultures, and natural environments.
Template intended to help jurisdictions navigate the community action planning process by providing a set of sample strategic objectives, actions, and evaluation metrics to plan program activities to address key children’s environmental health issues in communities.
Website providing tools related to air quality during inversions (conditions when a layer or warm air sits over a layer of cold air, trapping pollutants near the ground).
