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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
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LOW COST AIR QUALITY SENSORS FOR DOT AIR QUALITY SPECIALISTS

By Amber GarnettMay 7, 2021Leave a comment

AIR QUALITY IS TYPICALLY MEASURED BY RESOURCE AGENCIES USING VERY EXPENSIVE STATIONARY MONITORING EQUIPMENT. THE IDENTIFICATION OF THE BEST LOW COST AIR QUALITY SENSORS FOR DOT AIR QUALITY SPECIALISTS IS…

Best Practices for Streamlining Project-Level Analyses for Air Quality

By Amber GarnettMay 7, 2021Leave a comment

Air quality project-level analyses (PLAs) that state DOTs are required to prepare for purposes of NEPA and the EPA transportation conformity rule have become more complicated, time-consuming and costly in…

Determining the co-efficient of resilience capacities of various pavement materials to climatic parameters

By Amber GarnettMay 7, 2021Leave a comment

Climate change in terms of severe weather events is impacting severely the road infrastructure throughout the world. To design, construct and operate all weather roads in cost effective manner is…

Echo solutions to fog induced visibility reductions along highways

By Amber GarnettMay 7, 2021Leave a comment

Fog induced visibility reduction is imposing a serious threat to safety, has limited traffic movements along highways and has so many indirect effect on economy and human life during winters…

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

By Amber GarnettMay 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 Amber GarnettMay 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 Amber GarnettMay 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 Amber GarnettMay 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 Amber GarnettMay 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 Amber GarnettMay 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…

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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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