U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000


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Policy and Guidance

  • The Oregon Coordinate Reference System: A Surveying Approach for Supporting Geospatial-Based Technologies in Transportation Applications (.pdf) (Summer 2016) This case study highlights the Oregon Department of Transportation's journey in setting the groundwork for better use of survey data for both engineering and geographic information system workflows, with a focus on the Oregon Coordinate Reference System implementation. It serves as a resource for understanding the geospatial foundation for 3D engineered model-based technologies.
  • Guide for Selecting Projects Suitable for 4D Modeling (.pdf) (Summer 2016) This guide offers STAs new insights to managing project risk, optimizing resources, communicating with the public, and account transparently for construction expenditures by combining a 3D model with a project schedule to create a simulation of construction activities that represents the 4D model.
  • Geomatics Workflows (.pdf) (May, 2016) This Case Study highlights LiDAR technology as a surveying tool to support current transportation agency business applications and the true value of combining 3D survey data from multiple sources, such as traditional surveying equipment (i.e., robotic total stations, Global Navigation Satellite Systems or GNSS, photogrammetry, and LiDAR sensors) by the California and the North Carolina Departments of Transportation.
  • As-Built Utility Surveys: A Tale of Two State Transportation Departments (.pdf) (May, 2016) Documenting the location and other important characteristics of newly installed utilities is an important component of right-of-way (ROW) management. This case study highlights a Comparison of New Programmatic Approaches in Virginia and Michigan to improving underground utility mapping to better support design, construction, and asset management.
  • Guide for Efficient and Effective Utility Asset Data Collection Using Geospatial 3D Techniques (.pdf) (June, 2016) Geospatial, three-dimensional (3D), as-found utility survey technologies are key to achieving this asset management vision. These surveys integrate existing legacy utility data with new utility asset data collected with a variety of new survey technologies. When specified, integrated, and used correctly, 3D utility data can result in efficient workflows for agencies.

Highway History

Ever wonder why Congress didn't pass the Federal-Aid Highway Act of 1956 in 1955? Do you blame the future for our traffic problems? Did the 50th anniversary of the Interstate System in 2006 make you forget other historic milestones celebrated that year? And what's the big deal about the Interstate System anyway? These and many other highway history questions are answered on the Highway history page. In addition, you will find features such as:

PDF files can be viewed with the Acrobat® Reader®
Updated: 06/22/2016
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000