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Transportation Environmental Assessment & Impact Mitigation

Developing and applying analytic
tools and processes to assess the environmental implications of transportation programs and
projects and to develop cost-
effective mitigation strategies
for implementation by public
and private organizations.

Transportation is the source of nearly one-third of greenhouse gas emissions in the United States, and mobile sources are among the largest contributors to local air pollutants in urban areas throughout the world. Roads and parking create impervious surfaces that increase water runoff and produce urban heat island effects.

Transportation facilities also can cause habitat fragmentation, generate noise and vibration, and impact wetlands and other natural ecosystems—as well as affect historic resources, community cohesion, and other social and community characteristics. Because of the wide range of potential impacts to the natural and human environment, the U.S. National Environmental Protection Act (NEPA), the Clean Air Act (CAA) and amendments, and other legislation require analysis of impacts in order to implement transportation projects.

ICF International has extensive experience in assessing the environmental implications of transportation activities and projects for all modes. Our work includes project level analysis, such as development of environmental assessments, environmental impact statements, and conformity documents. It also includes broader policy-level analyses of strategies to reduce the environmental impacts of transportation for state, regional, national, international, and non-governmental organizations. Particular areas of expertise include air quality, greenhouse gases and climate change, water and habitat, social and community impacts, environmental justice, and land use effects.

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News
Integrated Transportation Expert Janet D'Ignazio Hired
ICF International Awarded $20.7 Million Contract with the U.S. Federal Highway Administration
ICF International Hires Gayle Kline, an Expert in Environmental Program and Policy Support
Transportation Publications
Emissions Trading: Aviation's Next Steps
Neighborhood Schools and Sidewalk Connections: What Are the Impacts on Travel Mode Choice and Vehicle Emissions?
Relationship Between Motor Vehicle Emissions of Hazardous Pollutants, Roadway Proximity, and Ambient Concentrations in Portland, Oregon
Downloads
Environmental Analysis & Assessment
Aviation and the Physical Impacts of Climate Change
Environmental Benchmarking
Global Climate Change
National Environmental Policy Act (NEPA) Services for Railroads
Smarth Growth Strategies: Creating Livable, Healthy Communities
Get free Acrobat Reader Selected Projects Selected Clients


SELECTED PROJECTS
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SELECTED CLIENTS
  • California Department of Transportation (Caltrans)
  • U.S. Federal Highway Administration
  • Maricopa Association of Governments (Arizona)
  • State and Territorial Air Pollution Program Administrators (STAPPA) and the Association of Local Air Pollution Control Officials (ALAPCO)
  • U.S. Environmental Protection Agency
  • U.S. Surface Transportation Board (formerly Interstate Commerce Commission)
  • National Cooperative Highway Research Program (NCHRP), Transportation Research Board
  • North American Commission for Environmental Cooperation (NACEC)
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DETAILS OF SELECTED PROJECTS

Environmental Assessment for Merger of Burlington Northern and Santa Fe Railroads for the Interstate Commerce Commission

ICF International conducted all aspects of the environmental assessment of the proposed merger of Burlington Northern and Santa Fe Railroads for the Interstate Commerce Commission (renamed as U.S. Surface Transportation Board). Our primary responsibilities included analyses of potential impacts from new construction and increases in rail traffic, development of mitigation measures, agency consultation, public outreach, and response to agency and public comments. We also supported SEA in identifying and analyzing rail line segments, rail yards, and intermodal facilities that would experience a sufficient increase in rail or truck traffic to trigger the environmental analysis thresholds for air and noise. In addition, ICF International conducted an extensive public involvement effort, which included running advertisements in 27 newspapers across 12 states, monitoring a toll-free hotline, and distributing factsheets.

Analysis of Traffic Emission Controls for the Phoenix Metropolitan Area, for Maricopa Association of Governments, Phoenix, Arizona

ICF International evaluated the existing traffic emissions modeling software and the inputs used to determine their effectiveness in realistically modeling emissions. Our data collection and model performance evaluation provided the basis for the design of the microscale carbon monoxide analysis that was subsequently used in the development of the Maricopa County carbon monoxide plan.

Intersection Air Quality Model Development for National Cooperative Highway Research Program

In order to develop more accurate predictions of carbon monoxide (CO) concentrations at intersections, a better understanding of emissions, dispersion, traffic, and their interrelationships is needed. To help address this information gap, ICF International conducted a multiphase data analysis, field study, and model development project. The result is the HYROAD model, an improved traffic, emission, and dispersion model for estimating microscale CO concentrations due to mobile source emissions near heavily traveled roadways.

Environmental Justice Desk Reference for the California Department of Transportation

ICF International developed an environmental justice reference guide for California transportation planners. As background for this study, we organized and conducted 10 workshops around the state for community-based organizations involved in environmental justice issues, as well as a two-day conference for local and regional public agencies. We then developed an extensive guidebook that discusses how transportation systems impact low-income and minority communities from both an environmental perspective and an economic perspective. The handbook also provides legal and historical perspectives on transportation environmental justice and provides detailed guidance to planners seeking to better incorporate environmental justice goals in long-range transportation planning and project development.

U.S. Inventory of GHG Emissions and Sinks for U.S. Environmental Protection Agency (EPA)

ICF International assists EPA in developing the official U.S. greenhouse gas (GHG) emission inventory for submission to the Framework Convention on Climate Change (FCCC) Secretariat. The U.S. report has been produced and distributed for the years 1990-2000 and provides a basis for ongoing development of:
  1. a comprehensive and detailed inventory and methodology for emissions and sinks of GHGs for the U.S.
  2. an international system of consistent national inventories of GHG emissions and sinks for all countries participating in the Intergovernmental Panel on Climate Change (IPCC)

Building on this work, we also developed a detailed inventory of GHG emissions for the transportation sector. This work involved analyzing ways to disaggregate the national inventory of carbon dioxide, methane, and nitrous oxide emissions into geographic components (e.g., state, county, or urbanized area) and other physical and spatial characteristics (e.g., vehicle type, fuel type, roadway type), as well as by economic sector (e.g., emissions from travel associated with shopping centers, hospitals, schools, package delivery services, etc.).

Environmental Impact Statement for Construction and Operation of 13-Mile Freight Rail Line in Houston, Texas

For the U.S. Surface Transportation Board, ICF International is preparing a time-sensitive Environmental Impact Statement (EIS) for the construction and operation of a controversial 13-mile rail line (also known as a build-out) to connect petrochemical plants in the Bayport Loop to an existing mainline. A partnership comprised of Burlington Northern and Santa Fe Railway (BNSF) and four petrochemical companies is proposing the new line. We are also analyzing the proposed operations over 50 miles of existing Union Pacific mainline track between the new line and the yard where BNSF would create new trains bound for various destinations.

The EIS is addressing effects related to grade crossing safety and delay, land use, noise, wetlands, water bodies, sensitive habitat, hazardous materials transport, and air quality, among others. ICF International is analyzing a broad number of alternative alignments to assist the Board in determining which alternatives to analyze in detail in the Draft EIS. We are consulting with the U.S. Army Corps of Engineers over potential impacts to wetlands. In addition, we are consulting with the U.S. Fish and Wildlife Service because two of the alternative alignments may affect an endangered flower. The applicants' preferred alignment would traverse airport property. Therefore, ICF International is analyzing the potential impacts to airport operations and is consulting with the Federal Aviation Administration (FAA).

The public and elected officials are generally opposed to the proposed project. ICF International is planning and implementing a substantial public involvement effort in English and Spanish to involve the numerous communities in the area of the new construction and along the mainline. We also are conducting substantial consultation with relevant federal, state, and local agencies. We are striving to achieve the appropriate level of analysis and public involvement while avoiding unnecessary delays. The FAA, U.S. Coast Guard, and National Aeronautics and Space Administration are serving as cooperating agencies.

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Contact us via e-mail at info@icfi.com Contact us by phone at 1.703.934.3603