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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
  • Meetings & Events
    • Past CEE Events
  • Resources
    • Practitioner’s Handbooks
    • AASHTO Publications
    • AASHTO Standing Committees
    • Federal & State Agencies
    • Trade Associations
    • Research
      • NCHRP 25-25
      • TERI Database
      • TRB Committees

Archived

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  2. Research Idea (TERI)

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…

High Speed Rail — Identifying, Analyzing, and Mitigating Impacts to Ecological Connectivity and Species Movement

By ahardingMay 7, 2021Leave a comment

Nationally we have raised awareness and action to address ecological impacts of roads upon wildlife, particularly means to avoid and reduce wildlife-vehicular collisions.  This is done by identifying and protecting/avoiding intact…

Rapid Electric Vehicle Connection to the Electric Grid

By ahardingMay 7, 2021Leave a comment

Plug-in and Hybrid Electric Vehicles (EVs) reduce oil imports.  However, the current transportation infrastructure is not optimized for EVs.  Without new technology and infrastructure, capital and operational barriers will harm the “Plug-In”…

Evaluating and Comparing Various Methods to Create a Regional Ecosystem Framework or Watershed Plan

By ahardingMay 7, 2021Leave a comment

Currently, to implement Eco-Logical, it is critical to either implement or adopt a Regional Ecosystem Framework (REF) or a Watershed Plan for the transportation/conservation planning area. Currently there are many…

Optimizing Recycled Asphalt Shingles in HMA

By ahardingMay 7, 2021Leave a comment

Generalizations have been made as to (re) using shingles in HMA and WMA pavements.  The engineering opimization of RAS has only been touched upon as to setting limits of RAS replacement.  Grade…

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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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