United States. Department of Transportation. Office of the Secretary of Transportation. Climate Change Center
2025-01-01
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PDF
Parking reforms are designed to efficiently use the existing parking supply and better balance supply and demand. By reducing the time spent searching for parking, also known as cruising, parking reforms can reduce congestion and greenhouse gas (GHG) emissions. Parking reforms can also be designed to discourage driving to certain areas during peak
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United States. Department of Transportation. Office of the Secretary of Transportation. Climate Change Center
2025-01-01
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PDF
Freight digitalization can provide environmental, health, and economic benefits, including reduced congestion on roadways and in and around ports, lower emissions, and operational and efficiency improvements for freight carriers (see the Freight Operational Strategies strategy page for more detail). Digital solutions include advanced scheduling and
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United States. Department of Transportation. Office of the Secretary of Transportation. Climate Change Center
2025-01-01
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PDF
Heavy-duty vehicles and engines are significant contributors to greenhouse gas emissions and local air quality issues. Typical diesel engines in heavy-duty trucks, locomotives, port equipment, and marine vessels can last up to 30 years. The Environmental Protection Agency (EPA) estimates that over 10 million older diesel engines are in use today. O
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United States. Department of Transportation. Office of the Secretary of Transportation. Climate Change Center
2025-01-01
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PDF
Truck deliveries during peak periods can worsen traffic congestion, which can lead to idling, increased greenhouse gas emissions, and air pollution. Curb-side deliveries require that drivers spend time searching for parking (increasing vehicle miles traveled (VMT) and emissions) and when nearby parking is not available, drivers may be forced to par
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United States. Department of Transportation. Office of the Secretary of Transportation. Climate Change Center
2025-01-01
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PDF
Many employers offer pre-tax commuter benefits as part of an employee’s compensatory package to provide cost savings and support recruitment and retention efforts. Commuter benefits can support transportation decarbonization goals by providing financial benefits to employees that walk, bike, or take public transit.
United States. Department of Transportation. Office of the Secretary of Transportation. Climate Change Center
2025-01-01
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PDF
Transit system integration offers efficient services to users by linking infrastructure, operators, and transport modes. Better integrated transport systems can make public transit, walking, and biking more accessible and user-friendly and reduce dependence on a household vehicle.
United States. Department of Transportation. Office of the Secretary of Transportation. Climate Change Center
2025-01-01
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PDF
Traffic congestion can mean increased travel times, higher incident rates due to stop-and-go conditions, poor air quality, and impacts to trucking and higher cost of goods. Road pricing programs involve charging drivers a toll to drive on busy roads to alleviate traffic congestion and reduce air pollution and greenhouse gas emissions from vehicles.
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United States. Department of Transportation. Office of the Secretary of Transportation. Climate Change Center
2025-01-01
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PDF
Intercity rail service connects cities over longer distances than commuter or regional trains. Intercity rail travel, including high-speed rail (HSR), is generally less carbon-intensive than air or single-occupancy car travel on a passenger-mile basis. Emissions savings are even greater on the electrified portion of rail which currently includes Am
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United States. Department of Transportation. Office of the Secretary of Transportation
2025-01-01
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PDF
The Bipartisan Infrastructure Law (BIL) offers an unprecedented opportunity to reduce climate pollution from transportation by providing funding specifically for doing so and by requiring states to develop State Carbon Reduction Strategies (CRSs). Strategies are to support efforts to reduce carbon dioxide emissions from on-road highway sources and
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To address the large environmental impact of the transportation sector, opportunities for mitigating greenhouse gas (GHG) emissions must be identified. After direct emissions from locomotives, rail ties are the second largest source of lifecycle railway GHG emissions. To better understand these impacts, this research qualitatively evaluated the env
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United States. Department of Transportation. Office of the Secretary of Transportation. Climate Change Center
2024-12-01
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PDF
Walking, biking, and rolling—collectively known as active transportation or micromobility—are fundamental elements of sustainable, connected, and vibrant communities. Nearly every trip involves active transportation, from walking to a bus stop to cycling the final stretch to work. This inherent connection to daily travel is underscored by recent da
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United States. Department of Transportation. Office of the Secretary of Transportation. Climate Change Center
2024-12-01
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PDF
Transit-oriented development connects neighborhoods and communities with equitable and accessible public transit and multimodal transportation options, reducing trip distances, vehicle miles traveled, and associated greenhouse gas emissions.
United States. Department of Transportation. Office of the Secretary of Transportation. Climate Change Center
2024-12-01
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PDF
Electric vehicle (EV) charging infrastructure plays a key role in accelerating the widespread adoption of EVs. A robust charging network provides reliable and accessible charging options for EV drivers across the transportation sector – from light-duty passenger vehicles to micromobility solutions like electric bikes and scooters, as well as transi
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United States. Department of Transportation. Office of the Secretary of Transportation. Climate Change Center
2024-12-01
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PDF
While increasing roadway capacity by adding lanes may reduce congestion in the short term, highway infrastructure capacity expansions typically increase demand in the long term. Accurate travel demand modelling is better able to capture demand for vehicle miles that is induced by expanded roadway capacity and limited alternative transportation opti
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The Transit Greenhouse Gas (GHG) Emissions Estimator (Estimator) is a Microsoft Excel-based spreadsheet tool that allows users to estimate the partial lifecycle GHG emissions generated and energy used during the construction, operation, and maintenance phases of a project across select transit modes. Users input general information about a project,
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A Report on Actions for Medium – and Heavy-Duty Vehicle Energy and Emissions Innovation (the MHDV Plan) summarizes strategies and actions to substantially reduce emissions in the U.S. commercial on-road medium- and heavy-duty vehicle (MHDV) sector. This includes all on-road vehicles over 8,500 pounds used for commercial purposes. The intended audie
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The U.S. National Blueprint for Transportation Decarbonization (“Decarbonization Blueprint”) serves as a holistic roadmap to achieve a future national transportation system that is clean, safe, secure, accessible, affordable, and equitable — while providing sustainable transportation options for all people and goods. The Blueprint is the product of
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The U.S. National Blueprint for Transportation Decarbonization (“Decarbonization Blueprint”) serves as a holistic roadmap to achieve a future national transportation system that is clean, safe, secure, accessible, affordable, and equitable — while providing sustainable transportation options for all people and goods. The Blueprint is the product of
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The purpose of this Action Plan is to identify actions under the Efficiency strategy to realize the goal of decarbonizing the transportation sector by 2050. This plan describes actions that all levels of government and the private sector can take to reduce the energy intensity of travel. The federal agencies that developed this plan can have a majo
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A Report on Actions for Medium – and Heavy-Duty Vehicle Energy and Emissions Innovation (the MHDV Plan) summarizes strategies and actions to substantially reduce emissions in the U.S. commercial on-road medium- and heavy-duty vehicle (MHDV) sector. This includes all on-road vehicles over 8,500 pounds used for commercial purposes. The intended audie
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