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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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    • Past Events
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    • Practitioner’s Handbooks
    • AASHTO Publications
    • AASHTO Standing Committees
    • Federal & State Agencies
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    • Research
      • NCHRP 25-25
      • TERI Database
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Archived

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  2. Research Idea (TERI)

Groundwater Flow Underneath Roads Causing Thermal Erosion in Permafrost Terrain

By ahardingMay 7, 2021Leave a comment

Observations and modeling of ground water flow underneath and through road embankments will lead to a better understanding of permafrost stability. Thermal models of road embankments have been a useful…

Evaluation of Long-term Regional Strategies for Alternative Powering of Vehicles

By ahardingMay 7, 2021Leave a comment

The objective of this research is to develop approaches for evaluating long-term regional strategies for the use of alternative vehicle power sources. The vision is that the approaches developed may…

Designing Streets and Highways for Living

By ahardingMay 7, 2021Leave a comment

Examine performance indicators that measure timely human access more directly.  How can transportation systems be easily evaluated in terms of measures of human quality of life – community livability, increasing commerce…

Environmental Justice Assessment of the Benefits of Transportation Investment Programs

By ahardingMay 7, 2021Leave a comment

Equity is on the agenda of a growing number of MPOs and state DOTs, following Title VI requirements and subsequent federal guidelines. At the same time, there is little practical…

Use Laser Ablation coupled to Mass Spectroscopy to Measure Temporal and Spatial Road Runoff Pollution Uptake by Aquatic Organisms

By ahardingMay 7, 2021Leave a comment

In concert with UC Davis, take samples from the calcareous skeletons/shells of invertebrates, cross section them through annual growth rings, burn samples from within the growth ring, analyze the vaporized…

Contribution of Zinc from Highway Fixtures: Targeted Monitoring

By ahardingMay 7, 2021Leave a comment

Zinc is an important targeted constituent for Departments of Transportation (DOTs). The average concentration in highway runoff exceeds water quality objectives. For individual storms, the measured concentrations of total zinc in highway discharge…

Contribution of Tire Weights to Lead in Runoff

By ahardingMay 7, 2021Leave a comment

Lead tire weights used to balance wheels may be a substantial source of lead in the highway environment. These weights are sometimes released from wheels and then abraded by traffic,releasing lead into…

On-road Traffic Operation Data Aligned with Model Validation Need for Project-Level PM2.5 Conformity Analysis

By ahardingMay 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 on-road level so as to ensure realistically representation of…

Salt/Deicing Practices Source Control

By ahardingMay 7, 2021Leave a comment

The objective of this study is to determine the optimum timing and application rates of various deicing materials.  A variety of standard tests can be conducted to determine the effectiveness of various chemicals, including:…

Nutrient (Nitrogen/Phosphorus) Management and Source Control

By ahardingMay 7, 2021Leave a comment

EPA has reported recently that the amount of nitrogen and phosphorus pollution entering our waters has escalated dramatically over the last 50 years, and that this trend will continue with US population…

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