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

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  2. Research Idea (TERI)

Cost Effective Survey Methods for Bat Identification

By ahardingMay 7, 2021Leave a comment

Problem Statement: Many DOTs are being required to conduct surveys for bat as a part of ecological impact studies or biological assessments for endangered species. Positive identification of some endangered…

Best Practices in Project Scoping to Support CSS

By ahardingMay 7, 2021Leave a comment

TERI Database Administrator Notes: Not recommended at present time by 2009 Subcommittee on Cultural Resources.

Mortality Effects of Continuous Concrete Highway Median Barriers on Wildlife

By ahardingMay 7, 2021Leave a comment

TERI Administrator Note (March 2008) Research Completed: HIGHWAY MEDIAN IMPACTS ON WILDLIFE MOVEMENT AND MORTALITY – State of the Practice Survey and Gap Analysis, CalTrans, 2006 http://www.dot.ca.gov/newtech/researchreports/reports/2006/median_barrier_final_report.pdf Problem Statement: Along…

Expand on Existing Research Efforts for Performance Measures Related to CSS Principles and Values

By ahardingMay 7, 2021Leave a comment

TERI Administrator Note (June 2007): Related Research Performance Measures for Context Sensitive Solutions – A Guidebook for State DOTs, Web Document 69 http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_w69.pdf

Evaluation Of Culvert Designs For Juvenile Salmonid Passage

By ahardingMay 7, 2021Leave a comment

Problem Statement: In transportation programs, there is a need to address situations that may affect salmon and their habitats under the Endangered Species Act (ESA). Culverts can block upstream passage…

Increased Use of Environmentally Preferable, Green Seal, and other Non-Toxic Products to Reduce Costs, Liabilities, and Pollution at DOT Offices, Maintenance Facilities and Rest Stops

By ahardingMay 7, 2021Leave a comment

TERI Administrator Note (May 2013): Completed Sept 2010 as NCHRP 25-25/Task 60 Increased Use of Environmentally Preferable, Non-Toxic Products to Reduce Costs, Liabilities, and Pollution at DOT Offices, Maintenance Facilities…

Roadside Animal Detection Systems Test-bed

By ahardingMay 7, 2021Leave a comment

Problem: Animal vehicle collisions are a challenge from the safety and ecological standpoint. Many current solutions are expensive (large crossing structures), potentially ineffective (static warning signs), or potentially ecologically damaging…

Evaluation of Controls to Prevent Nesting Swallows on Highway Structures and Possible Impacts on Nesting and Breeding

By ahardingMay 7, 2021Leave a comment

The Migratory Bird Treaty Act prohibits work on bridges and CBCs when active swallow nests are present. Controls to prevent nesting swallows on bridges and concrete box culverts not only…

Smart Growth Strategies for Rural Communities with a Focus on Secondary & Cumulative Effects Associated with Interchange Projects

By ahardingMay 7, 2021Leave a comment

2. Review "smart growth" literature and intitiatives in ten (10) case studies across America.  4. Predict and discuss what could happen to places that have little state of planning and…

White Paper on Best Practices for Invasive Weed Control

By ahardingMay 7, 2021Leave a comment

  There is a need prepare a white paper to identify practical strategies and methods for stopping/reversing the extension of invasive weeds along roadsides.

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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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