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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
    • Trade Associations
    • Research
      • NCHRP 25-25
      • TERI Database
      • TRB Committees

Wildlife & Ecosystems

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  2. Research Idea (TERI)

Public perception of pollinator habitat mowing/management schedules

By Amber GarnettJune 24, 2022

Is there a negative perception of DOTs if the mowing schedule leaves taller vegetation throughout more of the year and later into the growing season? Does education about the reasoning…

Strategies for effective interseeding to increase wildflower diversity in existing roadside vegetation

By Amber GarnettJune 24, 2022

Interseeding (also known as overseeding) can increase flowering plant diversity in grass-dominated stands of vegetation but has rarely been used on roadsides. Research is needed to better understand how to…

Computer Vision for species detection on transportation projects

By Amber GarnettJune 24, 2022

Computer Vision is a subfield of Artificial Intelligence (AI)/Machine Learning (ML) that uses image recognition to identify wildlife species. The technology has multiple applications for transportation projects including protected species…

Use of eDNA for species presence/absence surveys on transportation projects

By Amber GarnettJune 24, 2022

Assess the use of eDNA for detecting the presence/absence of protected species on transportation projects. If the application shows potential for accurate results that would be acceptable to natural resource…

Adopting wildlife-inclusive design principles for transportation infrastructure on public lands.

By Amber GarnettFebruary 26, 2022

Transportation-related infrastructure affects wildlife in a variety of ways by altering the physical environment. These alterations often negatively impact wildlife through displacement, barriers to movement, and increased mortality. They can…

Environmental Effects of Roadway Lighting on Wildlife

By Amber GarnettJune 29, 2021

Background Roadway lighting has been shown to measurably reduce nighttime fatal and other crashes. However, roadway lighting can negatively impact insects and animals through attraction and disorientation or by disrupting…

Framework for Analyzing and Mitigating Highway-related Noise and Vibration Impacts on Terrestrial Wildlife

By Amber GarnettJune 29, 2021

Background Currently, there is minimal guidance from federal agencies on how to conduct noise and vibration analyses specific to wildlife, which results in differing approaches to noise analyses that may…

Improving Our Understanding of Approaches to Integrate Watershed and Habitat Fragmentation Considerations into Transportation Planning and Development, with an Emphasis on Highways

By ahardingMay 7, 2021Leave a comment

This research project will build on research grounded in environmental science to identify and evaluate approaches for improving water quality and watershed performance and to reduce habitat fragmentation and its…

Methods for Retrofitting Highways with Measures to Reduce Impacts to Wildlife

By ahardingMay 7, 2021Leave a comment

Identify and analyze methods for retrofitting highways with measures to reduce impacts to wildlife. TERI Administrator Note (June 2007): Research Completed (See Below) NCHRP – Evaluation of the Use and…

Expanded Research On Role of Transportation Corridors as Environmental Resources

By ahardingMay 7, 2021Leave a comment

Roadsides in the United States cover an area equal to 100,000 football fields for every state (TRB 1997) and are often refuges for rare native plants. These areas represent an…

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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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