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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 CEE 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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Best Practices for Effective Tribal Consultation

By ahardingMay 7, 2021Leave a comment

Background   There are several web sites, reports, studies, and guidance on the tribal consultation process associated with historic preservation compliance and transportation project delivery. The following is a sample…

A Cost-Benefit Analysis of Transportation Noise

By ahardingMay 7, 2021Leave a comment

Problem Statement Although current and historical efforts to reduce transportation-related noise have been costly to develop, implement, and enforce, the nature and magnitude of their specific costs have not been…

Nearshore Fate of Platinum Group Elements in Los Angeles Basin

By ahardingMay 7, 2021Leave a comment

The extraordinary number of people and automobiles in metropolitan Los Angeles presents unique opportunities to assess anthropogenic contaminant loadings to the near-shore.  Platinum group elements (PGEs: platinum, palladium, and rhodium)…

Cost-Benefit Analysis of Landscape-Scale Water Quality Treatments

By ahardingMay 7, 2021Leave a comment

What would be the more effective landscape-scale water quality solution given limited financial resources; a relatively small aerial coverage with high efficiency BMPs (e.g. large ponds and sand filters) or…

Optimization of Porous Pavement Mix Designs for Installation and Durability

By ahardingMay 7, 2021Leave a comment

Porous pavement usage and design has improved dramatically since 2002 (Kandhal and Mallick, 2002) with published guidelines on mix designs (NAPA 2003) with continued refinements (UNHSC 2009) and others. The…

Stormwater Hydraulic Detention and Pollutant Removal Properties of Compost Blankets on Highway Fill Slopes

By ahardingMay 7, 2021Leave a comment

The compost blanket is a low impact development (LID) approach to flow control. Compost blankets could be used for stormwater hydraulic detention Best Management Practices (BMPs) to reduce the size requirements…

Impact of Simulator Based Driver Fuel Efficiency Training on Heavy Vehicle Emissions

By ahardingMay 7, 2021Leave a comment

Heavy on-road vehicle freight transportation is a significant contributor of green house gas and other pollutant emissions.  Much work has been done to reduce emissions through mandated changes in vehicle…

Validity Testing of Existing Ditch Use as a Linear Basin to Avoid Temporary Right-Of-Way Acquisitions

By ahardingMay 7, 2021Leave a comment

For small projects (paving projects), or even highway.

Turbidity Control Compliance Research and Training Center

By ahardingMay 7, 2021Leave a comment

This would build on the existing work at SECREF and expand to include the full array of turbidity control systems (passive, infiltration, active). New systems, which are being developed and…

Geoarchaeological Sensitivity Modeling

By ahardingMay 7, 2021Leave a comment

Sensitivity models that will allow for cost effective scoping and identification efforts that also reduce the potential for costly late discovery of archaeological sites To date sensitivity modeling for buried…

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  • All Content

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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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