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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

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  2. Research Idea (TERI)

Comparing Actual Environmental Impacts of Projects with Predicted NEPA Environmental Impacts

By ahardingMay 7, 2021Leave a comment

Background   NEPA environmental documents for projects reflect substantial time and money analyzing and predicting environmental impacts. Decisions on those projects are made based on that information. There is limited or no information…

New Noise Barrier Products & Noise Barrier Approval Research & Guidelines

By ahardingMay 7, 2021Leave a comment

TERI Administrator Note (January 2009): Funded as NCHRP Project 25-25, Task 40. Completed January 2008. http://www.trb.org/TRBNet/ProjectDisplay.asp?ProjectID=1658 Background:   The cost and total quantity of noise barriers as an environmental abatement…

Determine Dilution Factors for Snow and Ice Control Materials

By ahardingMay 7, 2021Leave a comment

Issue: Tests have shown that aquatic organisms have different tolerance thresholds to snow and ice control materials that are applied to roads, highways, and bridges. A major factor in terms of selecting…

Effectiveness of Compost and Recycled Highway Soil Amendment Products for Reduction of Dissolved Copper Concentrations in Highway Stormwater Runoff

By ahardingMay 7, 2021Leave a comment

Issue Environmental agencies in the Pacific Northwest are concerned about dissolved copper in stormwater.  Extremely low concentrations of dissolved copper (1 to 5 parts per billion) have been shown to…

Effectiveness of Using Watershed Plans in the Development of Surface Transportation Plans and the Project Permit Approval Process

By ahardingMay 7, 2021Leave a comment

TERI Administrator Note (Feb 2009) – Related Research – Linking Environmental Resource and Transportation Planning–The Current State of Practice (NCHRP 25-25: Task 32) FHWA’s Vital Few Environmental Goal, in part,…

Green Design Features and Management Practices for Handling Stormwater Runoff

By ahardingMay 7, 2021Leave a comment

Background/Need for this Research:    "Green" or "Low Impact Development" design features and management practices, such as rain gardens, vegetated swales, and permeable paving systems, can be important elements of…

Feasibility Study of Using Solar or Wind Power for Transportation Infrastructure

By ahardingMay 7, 2021Leave a comment

The scope of the research will include a comprehensive survey of the various types of solar and wind power systems available, their ability to provide sufficient or excess power for…

Integrating Cultural Resource Management (CRM) and Historic Preservation into Transportation Planning

By ahardingMay 7, 2021Leave a comment

Since the passage of the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU) in 2005, the Federal Highway Administration has continued to encourage a more integrated…

Assessment of Environmental Impacts of Products/Chemicals Used in Maintenance of Highways

By ahardingMay 7, 2021Leave a comment

Problem Statement:   To maintain the highway infrastructure, right-of-way and their functions, many operations including snow and ice control, paving/patching, surface sealing, traffic marking and vegetation management may use chemical…

Develop Environmentally Sensitive Designs for New and Retrofitted DOT Highway Maintenance Facilities

By ahardingMay 7, 2021Leave a comment

Problem Statement: Many facilities required in transportation operations and maintenance have evolved to the present by expansion, modification, and adaptation of design and materials common to several years ago. At…

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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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