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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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    • Practitioner’s Handbooks
    • AASHTO Publications
    • AASHTO Standing Committees
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      • NCHRP 25-25
      • TERI Database
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Archived

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  2. Research Idea (TERI)

Application of the Migratory Bird Treaty Act to State Departments of Transportation

By ahardingMay 7, 2021Leave a comment

Background: The U. S. Congress enacted the Migratory Bird Treaty Act (MBTA) in 1918 to implement several international treaties.  The treaties were entered into because of concerns about the decline…

Costs and Benefits of Transportation-Specific MS4 and Construction Permitting

By ahardingMay 7, 2021Leave a comment

TERI Administrator Note (January 2009): Idea selected for implementation with NHCRP 25-25 (Task 56) funding in 2009. The cost of complying with the National Pollutant Discharge Elimination System (NPDES) continues…

Impacts of Roadway Access Management on Air Quality, Energy Consumption, and Greenhouse Gas Emissions

By ahardingMay 7, 2021Leave a comment

Roadway access management has been shown to be highly effective in terms of improving both traffic safety and traffic flow. Crash rate reductions of between 40 and 50 percent are…

What is the Best Methodology for Achieving the “Passive” Diesel Particulate Filter Retrofit of Existing DOT Diesel Engine Fleets While Eliminating Service Delivery Issues and at What Cost/Benefit?

By ahardingMay 7, 2021Leave a comment

TERI Administrator Note (Feb 2009) Related Research: Diesel Retrofit Technology – An Analysis of the Cost-Effectiveness of Reducing Particulate Matter and Nitrogen Oxides Emissions from Heavy-Duty Nonroad Diesel Engines Through…

Effectiveness of Air Quality Public Education Programs

By ahardingMay 7, 2021Leave a comment

TERI Database Administrator Notes:  Not recommended at present time by 2009 Air Quality Subcommittee. Background: Millions of dollars are spent annually on air quality (mobile source-related) public education programs Objectives…

Managing the Effects of Magnesium Chloride on Roadside Vegetation

By ahardingMay 7, 2021Leave a comment

TERI Administrator Note (Feb 2009): Related Research: Impacts of Magnesium Chloride-Based Deicers on Roadside Vegetation; Transportation Research E-Circular Number E-C126 June 2008 – Surface Transportation Weather and Snow Removal and…

Remediation of Areas Treated with Residual Herbicides

By ahardingMay 7, 2021Leave a comment

I. Research Problem Statement For years non-selective, residual herbicides were used to keep the roadsides at the edge of the pavement free of vegetation. These areas, sometime referred to as…

Vegetation Effects on Sub Base Drainage Relating to Pavement Preservation

By ahardingMay 7, 2021Leave a comment

Environmental regulations require Departments of Transportation (DOTs) to stabilize exposed earth along roadsides and encourage the establishment of grasses to help filter pollutants out of runoff. To comply with these regulations,…

Effects of Roads on the Copperbelly Water Snake (Nerodia Erythrogaster Neglecta)

By ahardingMay 7, 2021Leave a comment

TERI Database Administrator Notes:  Not recommended at present time by 2009 Natural Systems Subcommittee.  The copperbelly water snake (Nerodia erythrogaster neglecta), which is federally listed as threatened, occurs in the…

Management Strategy for Bridges with Townsend’s Big-Eared Bat (Corynorhinus Townsendii) Colonies

By ahardingMay 7, 2021Leave a comment

Bats are an indispensable natural resource. Notably, they consume enormous quantities of farm and forest insect pests, saving the agricultural industry millions in lost products. Unfortunately, more than half of…

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