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Staff Biographies - GIS Team

Meet the U.S. DOT Volpe Center's geographic information systems (GIS) team.

Gary Baker

Gary BakerGary Baker joined the Volpe Center as a GIS specialist in 1996. Baker is the GIS team leader and has over 20 years of experience working with GIS. He also has extensive software development and data science skills. In his 22 years with the U.S. Department of Transportation, he has provided expertise in mapping, spatial analysis, and custom GIS solution development for all modes of transportation, from the local to the global scale. He now leads a team of GIS specialists, working directly with sponsors and providing critical expertise throughout the Center on all aspects of geospatial visualization and analyses.

Selected projects that Baker has been involved with include the following:

  • Alternative Fuel Transportation Optimization Tool (AFTOT)
  • National Park Air Tour Management Plans (ATMP)
  • Aviation Environmental Design Tool (AEDT)
  • Management of FAA’s unstaffed infrastructure (UISGIS)
  • Assessing aviation's global emissions
  • Noise modeling and measurement in Grand Canyon and Southern Florida
  • Rail traffic simulations
  • GIS web-based FRA grant tracking
  • Positive train control and hazmat risk analyses
  • Highway rail crossing and historical rail incident geolocation

Alexander Oberg

Geospatial Specialist
Certificate in GIS, Pennsylvania State University
BA Geography and Environmental Studies, Middlebury College

Alexander Oberg joined the Volpe Center as a geospatial specialist in 2016. He has an extensive background in GIS, and prior to joining the Center, Oberg was a GIS support associate for the Massachusetts Institute of Technology Libraries. Oberg provided front line reference and one-on-one research consultation support to a broad GIS user community, including current and future professionals in transportation, urban planning, and environmental fields. Oberg also prepared and led GIS presentations and workshops to illustrate and explain GIS analyses, tools, models, and applications.

In addition, Oberg has two years of environmental consulting experience in the private sector, primarily involving contracts with federal agencies, including the National Oceanic and Atmospheric Administration; U.S. Fish and Wildlife Service; and Bureau of Ocean Energy Management, Regulation, and Enforcement. His work included GIS analysis, mapping and relational database creation, and maintenance.

Sara Secunda

GIS Specialist
MA Geography, Portland State University
BS Geography, University of Vermont

Sara Secunda joined the Volpe Center as a GIS specialist in 2000. She has been involved in GIS-based analyses and developing customized GIS solutions for various modes of transportation. As project lead for the Federal Highway Administration’s (FHWA) HEPGIS mapping website, Secunda assisted in development of the interactive mapping application, which serves maps and provides an analysis tool for transportation planners. She is currently the website manager, updating and maintaining the website’s functionality, maps, and data.

For the past 15 years, Secunda has provided GIS analysis and support for the National Park Service (NPS) and Federal Aviation Administration (FAA) National Park Air Tour Management Plans (ATMP) program.  This support includes mapping air tour and air flight layers, and generating various input to noise models. Secunda also provides GIS analysis and mapping for FHWA’s Alternative Fuel Corridors project.

Before joining the Volpe Center, Secunda worked for 11 years as a GIS specialist in federal and local government and private industry.

Scott Gilman

GIS Specialist (Data Scientist)

Michelle Gilmore

GIS Specialist (Data Scientist)

Peter Wilke

GIS Specialist (Data Scientist)

Caitlin Willoughby 

GIS Specialist (Data Scientist)

Last updated: Thursday, January 21, 2021