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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

Archived

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  2. Research Idea (TERI)

Strategies for state-wide data collection in the context of environmental analysis in project level transportation decision making

By ahardingMay 7, 2021Leave a comment

New technologies have made it possible to collect and characterize large amounts of data through remote sensing and other techniques. Sensors, drones, and powerful data analytics have the potential to…

Considering “Reasonable Assurance” in Section 106 Compliance and NEPA Decision Making

By ahardingMay 7, 2021Leave a comment

Highway projects often impact historic buildings and archeological sites, that when funded with Federal-aid funds, triggers Section 106 of the National Historic Preservation Act (NHPA). But those projects develop within…

Threat Assessment for Japanese Knotweed

By ahardingMay 7, 2021Leave a comment

We wish to ascertain the impact of Japanese knotweed on the stability and lifespan of roads, bridges, and other infrastructure near waterways. Japanese knotweed is one of the world’s worst…

Stormwater Asset Management for Regulatory Compliance and Practical Operations and Maintenance

By ahardingMay 7, 2021Leave a comment

Transportation agencies across the nation are charged with operating and maintaining stormwater infrastructure associated with roadways to ensure runoff is efficiently removed from impervious surfaces and discharged to nearby waterbodies…

LiDAR, Fish Passage Barriers, and Riparian Mapping Feasibility Study

By ahardingMay 7, 2021Leave a comment

Fish passage barriers are a significant threat to the recovery of threatened and endangered fish and other aquatic species. There are often limitations to transportation funding that require the prioritization…

Culvert Designs for Terrestrial Wildlife Passage Hydraulic Function

By ahardingMay 7, 2021Leave a comment

Culvert and bridge design involve safely passing floods and debris while minimizing instability and maintenance requirements. Culverts and bridges also have the potential to reduce wildlife-vehicle conflicts (WVC) by facilitating…

Uncertainty in Project-level Emissions and Air Quality Analysis

By ahardingMay 7, 2021Leave a comment

When a transportation project is undertaken, an air quality analysis may be required to meet federal and/or state requirements related to U.S. EPA transportation conformity regulations, NEPA, associated FHWA guidance,…

Using Project Level Drive Cycles to Support Air Quality Analysis

By ahardingMay 7, 2021Leave a comment

The objective of this project is to develop guidance on how to apply microscopic traffic simulation models to project level emissions analysis, focusing specifically on vehicle trajectory information. This project…

Assessment of How State DOTs set CMAQ Emission Reduction Performance Measures Targets

By ahardingMay 7, 2021Leave a comment

Background On January 18, 2017, the Federal Highway Administration (FHWA) published the final performance measure rule (PM3) under MAP-21. This rule, which took effect on May 20, 2017, established CMAQ…

NATIONAL TO STATE LEVEL HISTORIC ROAD CONTEXT, IDENTIFICATION AND EVALUATION

By ahardingMay 7, 2021Leave a comment

A multi-disciplinary approach to building a national-level historic context for historic roads that will then be used to build state-level historic contexts. Using economy of scale, develop a historic context…

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  • All Content

    • AASHTO (4)
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    • Podcast (22)
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    • Public Involvement (7)
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    • Traffic Noise (9)
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    • Uncategorized (9)
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    • Using the Practitioner's Handbooks (8)
    • Waste Management/Recycling (14)
    • Water Quality/Wetlands (24)
    • Wildlife and Ecosystems (45)

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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