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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)

Pay-By-The-Mile Auto Insurance

By ahardingMay 7, 2021Leave a comment

Using data from one state, conduct a statistical analysis to show the degree to which vehicle miles traveled and 1) accident rates and 2) cost of accidents correlate. Auto insurance…

Assessment of Emission Reduction Potential of Truck Freight Diversion to Other Transportation Modes and Development of Improved Methods for Estimating Air Quality Benefits of Freight Modal Shifts

By ahardingMay 7, 2021Leave a comment

Background Truck freight operations are a major source of air pollutants, including criteria pollutants, toxic air pollutants and greenhouse gas emissions. Although the 2008-2010 recession has led to recent reductions…

Addressing Climate Change Impacts in Federal, State, and Local Environmental Review Processes

By ahardingMay 7, 2021Leave a comment

With the growing interest in mitigating climate change impacts from transportation facilities and other projects, a need exists to more fully examine potential impacts.  The National Environmental Policy Act (NEPA)…

Quantifying Emissions of Greenhouse Gases under Real-World Driving Conditions

By ahardingMay 7, 2021Leave a comment

We propose an on-road study of vehicular non-carbon dioxide (CO2) greenhouse gas emissions.

Petroleum Bulk Storage Compliance Issues within Transportation Agencies Nationwide

By ahardingMay 7, 2021Leave a comment

Petroleum Bulk Storage (PBS) is a necessary component of every State DOT’s operations.  DOTs maintain large fleets of vehicles and equipment that must be fueled and maintained.  However, the regulatory…

Long Term Construction and Maintenance Cost Comparison for Road Stream Crossings: Hydraulic Design vs. Bankfull Width Design

By ahardingMay 7, 2021Leave a comment

The design and installation of road stream crossings to accommodate fish and aquatic live passage is becoming a priority for state and federal regulatory agencies.  State and municipal project designers…

Evaluation of the Physical/Chemical Properties of Recycled Concrete Aggregates (RCA) and RCA-blends for Materials Acceptance and Water Quality Impacts

By ahardingMay 7, 2021Leave a comment

PennDOT has developed material specifications on Recycled Concrete Aggregates (RCA) in an effort to expand the use of recycled materials in highway and maintenance applications. The specifications were developed from…

Using Wind Power for Electrical Demand at Highway Rest Areas

By ahardingMay 7, 2021Leave a comment

The Illinois Department of Transportation is currently working with the University of Illinois to study the feasibility of off-setting or displacing electrical power grid demands through the use of wind…

Method to Set Regional Expectations for TDM Performance Indicators/Realistic Targets

By ahardingMay 7, 2021Leave a comment

TERI Database Administrator Notes:  Not recommended at present time by 2009 Environmental Process Subcommittee. Over the past 35-40 years, Travel Demand Management (TDM) strategies have been implemented to address a…

Analysis of Alternatives to CAFE for Increasing Fleet Fuel Economy

By ahardingMay 7, 2021Leave a comment

The purpose of this research is to follow up on the NRC committee work on CAFE and provide analyses of different alternatives to CAFE. An evaluation of different alternative CAFE…

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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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