Project Spotlight: FAA approved Airport Layout Plan (ALP) & Airport Mapping

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Project Name: Gladwin Airport     Location: Gladwin County Michigan

Description of Work:

All work was completed to the standards of FAA Advisory Circulars 150/5300-16A, 17C, and 18B and all deliverables are compliant with the FAA AGIS standards

  • Aeronautical Field Survey:  We performed the survey observations required by the Advisory Circulars and AGIS workflow including: Geodetic Control, Photogrammetric Control, Runway Survey, Navigational-Aids, Airfield Attribution Survey.

  • Aerial Mapping and Compilation:  Digital aerial imagery capable of meeting Advisory Circular requirements was acquired. This consisted of approximately 8 flight lines and 198 images, flown at a single altitude, at a 10cm GSD, with supporting documentation and airborne GPS/IMU data. 

  • AT: We performed aero-triangulation based on the ground control. 

  • Obstacles: Photogrammetric compilation of obstacles was performed consisting of the AC-18B defined Vertically Guided Surfaces and FAR Part77 approach surfaces for both runways based on the surveyed runway end points and centerline profile. 

  • Topo/Plan: ALP mapping of the required features classes was mapped in addition to development of 2-foot contours. The Airport Layout Plan (ALP) serves as a critical planning tool that depicts both existing facilities and planned development for an airport

  • Orthos: We developed orthophotography at the native-GSD for the project area in both GeoTIFF and MrSID format. 

  • Final Deliverables: AGIS datasets, including the obstruction surfaces, obstacles identified, runway critical points, and all other mapped features. We uploaded the GIS data files to the FAA website for validation and included the required final report.

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