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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

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  2. Research Idea (TERI)

Combining Compost and Phosphorus Sorption Media into a Homogenized “Mix” for Stormwater Treatment

By ahardingMay 7, 2021Leave a comment

This study will develop a compost blended with phosphorus sorption media mix (Mix), which will treat highways stormwater runoff while limiting phosphorus leaching. Compost effectively removes metals and other pollutants…

RELATIONSHIPS BETWEEN TRAFFIC NOISE, NOISE WALLS, NOISE REDUCTIONS, TRAFFIC, AIR QUALITY, AND ATMOSPHERIC CONDITIONS

By ahardingMay 7, 2021Leave a comment

RESEARCH THE RELATIONSHIP BETWEEN TRAFFIC NOISE, NOISE WALLS, NOISE REDUCTIONS, TRAFFIC, AIR QUALITY, AND ATMOSPHERIC CONDITIONS VIA 24/7 WEATHER, TRAFFIC, AND NOISE STATIONS.

Effective On-Bridge Treatment of Stormwater

By ahardingMay 7, 2021Leave a comment

Stormwater treatment of bridge deck runoff has always been a tough design challenge. Traditional methods of treating bridge deck runoff suggest piping stormwater off the bridge and treating it on…

Optimizing and Streamlining Data Collection and Analysis for Project-Level Air Quality Analyses

By ahardingMay 7, 2021Leave a comment

State DOTs would benefit from guidance that goes beyond the norm on how to conduct modeling for project-level air quality analyses and addresses which modeling inputs are the most cost-effective…

Understanding Appropriate Approach Slopes to Wildlife Highway Overpasses

By ahardingMay 7, 2021Leave a comment

The optimal slope of approaches to highway overpasses for wildlife does not appear to be well documented. Understanding slope constraints could inform the design of overpass structures along the nation’s…

Evaluate the Current Relevance of Section 4(f) in Terms of Preservation of Historic Properties

By ahardingMay 7, 2021Leave a comment

I would like to see a study review the current relevance of Section 4(f) in terms of preservation of historic properties.  Has it outlived its purpose, and now acts more as…

Understanding the Efficacy of Median Barrier Scuppers on Wildlife Passage

By ahardingMay 7, 2021Leave a comment

The efficacy of scuppers or cutouts in ‘Jersey’ or concrete median barriers on passing wildlife remains untested; yet DOTs utilize scuppers as mitigation for the impacts of constructing concrete median…

Crowd-sourced road roughness mapping

By ahardingMay 7, 2021Leave a comment

The purpose of this study is to demonstrate the use of smartphone sensors for automatically assessing the roughness of pavement and then efficiently managing the pavement network. By developing appropriate…

Lightly Contaminated Transportation Material Reuse Options and Specifications

By ahardingMay 7, 2021Leave a comment

Transportation agencies generate and then pay to dispose of large quantities of lightly contaminated materials such as street sweepings, gravel shoulder cuttings, and other roadway materials.  These lightly contaminated materials…

Co-Benefits and Trade-Offs of Low-Carbon Policies in the Transportation Sector

By ahardingMay 7, 2021Leave a comment

With rising concerns over climate change impacts and the resilience of urban infrastructures, cities are increasingly held accountable for their total carbon footprint and for their ability to identify and…

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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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