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Save the Date: June 4-8, 2023 – AASHTO Committee on Environment and Sustainability Annual Meeting
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Center for Environmental Excellence | AASHTO
Center for Environmental Excellence | AASHTO
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  • Laws & Agreements
    • Programmatic Agreements Library (PAL)
    • Case Law Updates on the Environment (CLUE)
    • National Environmental Policy Act (NEPA)
    • NEPA Assignment
  • State of the Practice
    • Case Studies
    • Communities of Practice
    • Practitioner Interviews
  • Education
    • Environmental Topics
      • Active Transportation
      • Air Quality
      • Climate Change
      • Environmental Justice
      • Invasive Species/Vegetation
      • Stormwater
      • Sustainability
      • Traffic Noise
      • Waste Management/Recycling
      • Water Quality/Wetlands
      • Wildlife and Ecosystems
    • Practical Applications
      • Context Sensitive Solutions
      • Emerging Technologies
      • Environmental Management Systems
      • Geographic Information Systems
      • NEPA Process
      • Planning & Environment Linkages
      • Project Delivery
      • Protecting Cultural Resources
      • Public Involvement
      • Transportation Policy
      • Using the Practitioner’s Handbooks
  • News
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    • Past Events
  • Resources
    • Practitioner’s Handbooks
    • AASHTO Publications
    • AASHTO Standing Committees
    • Federal & State Agencies
    • Trade Associations
    • Research
      • NCHRP 25-25
      • TERI Database
      • TRB Committees

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Assessment of Potential Emissions Reductions from Linear Motor Systems

By ahardingMay 7, 2021Leave a comment

Problem Current surface transportation systems depend on century-old internal-combustion technology that produces millions of tons of GHG’s and other emissions annually. Highway vehicles produce emissions while idling in traffic and in…

Assessing the Impact of Leakage on the Effectiveness of a Low Carbon Fuel Standard

By ahardingMay 7, 2021Leave a comment

Problem Statement A low carbon fuel standard (LCFS) sets a target to reduce the greenhouse gas (GHG) intensity of transportation fuels. Fuel providers must reduce the GHG intensity of their…

Analyzing Infrastructure and Supply Chain Requirements to Support the Transition to High Efficiency/Low GHG Emitting Light-Duty Vehicles

By ahardingMay 7, 2021Leave a comment

Problem Statement An ever-growing interest in the promise of high efficiency/low greenhouse gas-emittingvehicles has led to a variety of efforts to accelerate their commercial introduction. All the major original equipment…

Reducing GHG Emissions from Freight Movements Through Comprehensive Port/Gateway Planning

By ahardingMay 7, 2021Leave a comment

Problem There are several steps in the freight processing system, from warehousing, manufacture, and distribution that generate trips, usually by truck, between these stages. Often import material is in a disaggregated…

Low-Impact Development Practices to Mitigate the Impacts of Nutrients and Pathogen Contributions from Highway Rights-of-Way

By ahardingMay 7, 2021Leave a comment

Need for the Research Stormwater runoff from transportation Rights-of-Way (ROW) may contain nutrients (particularly phosphorus and nitrogen) and may contain pathogens (though it is unclear if DOTs are a source that would…

Implications of Climate Change for Rail and Barge Freight Demand, Services and Networks

By ahardingMay 7, 2021Leave a comment

Problem The climate change literature projects that weather conditions and weather patterns could change significantly enough to trigger shifts in land use, economic activity and trade, which would lead to…

Environmental Benefits of Permeable Shoulders

By ahardingMay 7, 2021Leave a comment

This project would look at the use of permeable pavements along shoulders. It would primarily look at the suitability of such pavements from a design, constructability, maintenance, and longevity standpoint. However, it would…

Carbon Footprint of Supply Chains

By ahardingMay 7, 2021Leave a comment

Problem Supply chains are designed for the processing, staging, and carriage of goods to market. Design choices are determined by sourcing decisions, production and competitive requirements, logistical economies, product characteristics, land…

Stormwater Storage

By ahardingMay 7, 2021Leave a comment

New construction and replaced impervious surfaces will trigger the new LID standard in the future. In implementing the new LID standard, DOTs need a factual basis to assess the feasibility of applying…

Assessment of Potential Emissions Due to Proposed Increase in Freight Tonnage

By ahardingMay 7, 2021Leave a comment

Problem An increase in allowable freight tonnage on U.S. highways has been proposed. Such an increase in truck weight could affect greenhouse gases (GHG’s) and other emissions, and the mix of…

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The Center for Environmental Excellence by the American Association of State Highway and Transportation Officials (AASHTO) has been developed in cooperation with the Federal Highway Administration to promote environmental stewardship and to encourage innovative ways to streamline the transportation delivery process.

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