Airport References Points (ARP) - An airport reference point is the center point of an airport, located at the geometric center of all the usable runways. WisDOT ARPs include public and private-use airports, heliports, seaplane bases, and ultralight facilities.
Airport Reference Point Buffers - Airport reference point buffers are six-mile buffer areas around each public-use airport facility. Buffer rings were developed by WisDOT based on FAA Advisory Circular (AC) 150/5200-33C and are described in Chapter 5 of the Wisconsin Facilities Development Manual to coordinate management of Airport wildlife hazard areas.
Please submit airport reference point data updates to: boadataupdates@dot.wi.gov