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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
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  2. Research Idea (TERI)

Using experiments and long term data for optimal wetland mitigation

By Amber GarnettMay 7, 2021Leave a comment

Wetlands are among the world’s most ecologically productive and economically important environments, but they are also one of the world’s most endangered environments. Approximately 53% of wetlands in the lower…

The effects of pile driving on the Atlantic Shortnose Strugeon

By Amber GarnettMay 7, 2021Leave a comment

With the 2012 listing of the Atlantic Shortnose Sturgeon to the threatened and endangered species list the Virginia Department of Transportation has had to produce two noise analyses for a…

Guidance for Transportation Modelers for Generating Traffic and Activity Data for Project-Level Air Quality Analyses

By Amber GarnettMay 7, 2021Leave a comment

The recently completed NCHRP 08-83 study (see excerpt below) on “Analytical Travel Forecasting Approaches for Project-Level Planning and Design” addressed project-level transportation modeling in detail but only addressed air quality…

Multi-pollutant benefits of on-road motor vehicle control strategies

By Amber GarnettMay 7, 2021Leave a comment

While there are a number of published studies that provide information to state and local agencies about the potential emission reduction benefits of control strategies that are designed to reduce…

Performance Standards for Invasive Species Control

By Amber GarnettMay 7, 2021Leave a comment

There is a need for invasive species control performance standards.  NCHRP Synthesis 363 identified that there are few studies that quantify benefits of invasive secies control, thus highway departments often commit…

Highway Photovoltaic Noise Barriers (PVNB)

By Amber GarnettMay 7, 2021Leave a comment

Transportation agencies worldwide are increasingly seeking ways to cost-effectively improve the sustainability of their various activities, particularly by reducing their greenhouse gas emissions. The PVNB is one technology that highway…

Integrating Traffic Data Sources and Advanced Data Collection Technologies for Facilitating Project-Level Transportation Conformity Analysis

By Amber GarnettMay 7, 2021Leave a comment

When applying MOVES (MOtor Vehicle Emission Simulator) in project-level PM (particulate matter) conformity analysis, link-based traffic characteristics are required at local roadway level so as to ensure realistically representation of…

The Effectiveness of Compost Amended Vegetated Filter Strips Using a Compost Blanket Application Method for Pollutant Removal from Highways

By Amber GarnettMay 7, 2021Leave a comment

Research Idea Scope Background: Current municipal and transportation-related stormwater permits in western Washington require the use of low impact development (LID) as the preferred and commonly used approach to managing…

Estimating Saturated Conductivity and Modeling Infiltration Rates on Highway Embankments for Stormwater Management

By Amber GarnettMay 7, 2021Leave a comment

Background: Natural and engineered dispersion are best management practices (BMPs) designed to receive highway runoff from sheet flow for the purposes of water quality treatment and flow control. These BMPs…

Portland Cement Pervious Concrete Pavement on Highway Shoulders – Stormwater Quality and Quantity Assessment

By Amber GarnettMay 7, 2021Leave a comment

Background: This research proposal seeks to study Portland Cement Pervious Concrete’s (PCPC) ability to remove pollutants, particularly heavy metals, and reduce surface volume flows from highway runoff. This study will…

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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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