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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)

Templates for Assessments for CMAQ Programmatic Eligibility

By ahardingMay 7, 2021Leave a comment

Section 1113 of MAP-21 addresses the Congestion Mitigation and Air Quality (CMAQ) program and provides for “optional programmatic eligibility” as follows:   (1) IN GENERAL.—At the discretion of a metropolitan…

Developing Historic Contexts for Roads: A Model for Identification and Evaluation

By ahardingMay 7, 2021Leave a comment

PROBLEM Historic roads are an intrinsic part of the nation’s heritage, representing different periods and trends in engineering design from the wagon roads that survive in rural areas to early…

Template for a Programmatic Agreement for MSATs

By ahardingMay 7, 2021Leave a comment

Current US DOT guidance specifies 140 to 150 thousand in average daily traffic (ADT) volume as the effective threshold, applicable across the nation, for conducting quantitative assessments of mobile source…

Geophysical Investigation of Cemeteries

By ahardingMay 7, 2021Leave a comment

A comprehensive study of the geophysical investigations of cemeteries using case studies (n=50) and interviews with experience practitioners to determine best practices for maximizing the effectiveness of these investigations. Analysis…

Template for a Resource Document for Project-Level Air Quality Analyses

By ahardingMay 7, 2021Leave a comment

In 2012, a template for NEPA/conformity  documentation for project-level air quality analyses was completed as NCHRP 25-25 (Task 71), (See “Templates for Project Level Analysis Using MOVES, CAL3QHC/R and AERMOD”,…

Induced Growth

By ahardingMay 7, 2021Leave a comment

A study of past road projects that had added capacity and an analysis of induced growth caused by these projects. Determining which projects that added capacity actually induced growth and…

Hypothetical Case Studies for Project-Level Air Quality Analyses for Particulate Matter

By ahardingMay 7, 2021Leave a comment

Templates for modeling of various typical transportation project types would be developed in this proposed study. The modeling would be conducted using the latest updates to US EPA models and…

Traffic Analysis Data Age and Relevant Changes Traffic Updates Cause to Project Design

By ahardingMay 7, 2021Leave a comment

In NEPA analysis that goes on for numerous years for transportation projects, the traffic data is updated with analytical consequences periodically throughout the process. But how often do these expensive…

Reference Case Studies for Project-Level Air Quality Analyses

By ahardingMay 7, 2021Leave a comment

The development of standard reference cases for modeling various project types and pollutants would benefit state DOTs that are transitioning to the new federal models and guidance for project-level air…

Developing a Comprehensive Transportation Air Quality Research Plan

By ahardingMay 7, 2021Leave a comment

DOTs and other agencies working on transportation-related air quality issues are under increasing financial and environmental constraints. Several of these agencies put forward research ideas and fund research projects in…

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  • All Content

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    • Using the Practitioner's Handbooks (8)
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    • Wildlife and Ecosystems (31)

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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