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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
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    • Research
      • NCHRP 25-25
      • TERI Database
      • TRB Committees

Archived

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  2. Research Idea (TERI)

Tire-Pavement Noise as a Construction Quality Indicator

By ahardingMay 7, 2021Leave a comment

RESEARCH PROBLEM STATEMENT Paying a contractor based on the quality of pavement construction is not new.  In fact, nearly all specifications accomplish this, be it through means & methods, end-result,…

Field Evaluation of Reflected Noise for Sensitive Receptors Across from a Noise Barrier

By ahardingMay 7, 2021Leave a comment

PROBLEM STATEMENT:       It has been the experience of a number of state transportation departments, that there is a strong potential for residents on the opposite side of a highway from…

Determining the Influence of Road Surfaces on Vehicle Noise at Locations Adjacent to a Roadway: Precision and Bias Statements

By ahardingMay 7, 2021Leave a comment

Tire-pavement noise has become an important consideration for highway agencies, as the public increasingly demands that highway traffic noise be mitigated. Title 23, Part 772 of the Code of Federal…

Effects of Heavy Truck Volumes on Noise

By ahardingMay 7, 2021Leave a comment

Among the many types of on-road vehicles traveling the American highway system, heavy trucks are the loudest frequently-heard noise sources. Comments from residents near highways at project public hearings and…

Sustainability Certification for Transportation Professionals

By ahardingMay 7, 2021Leave a comment

Develop a comprehensive certification program consisting of online and in class sessions.  The program will utilize current research, sustainability tools and case study examples to enable transportation professionals to apply…

Defining Rural Livability through Performance Indicators

By ahardingMay 7, 2021Leave a comment

The transportation industry is experiencing a paradigm shift to more livability centric goals, as evidenced by new policy directions at the federal level and the strong interest in livability-enhancing projects…

Quantify and Incorporate Environmental Benefits into Life Cycle Costing Models for Common Roadway Construction Practices

By ahardingMay 7, 2021Leave a comment

Problem Common roadway construction practices impact our environment. Impacts to streams and rivers have been monitored and are considered in the design and construction process. Efforts have been made to reduce other…

Context Sensitive Design to Influence Operating Speeds

By ahardingMay 7, 2021Leave a comment

RESEARCH PROBLEM STATEMENT Inappropriate speed is one of the primary safety hazards facing highway users. Most road agencies attempt to achieve the right operating speed among drivers by imposing speed…

Improved Modal Operating Profiles for Fuel Use Comparisons among Modes

By ahardingMay 7, 2021Leave a comment

Problem There would be value in discerning a realistic auto operating context/profile to use in comparison with transit travel. We tend to compare mean characteristics of the modes when it…

Assessment of Costs Associated with Hydrogen as an Alternative Fuel

By ahardingMay 7, 2021Leave a comment

Problem Hydrogen has been proposed as a feasible alternative fuel for vehicles. However, the ramifications of such an approach to transportation have not been fully assessed. These include: the emissions due to…

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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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