Travis AFB Sustainability Study Report Final Sustainability Study Report | Page 31
The Travis AFB Land Use Compatibility Plan (LUCP) also establishes noise
contours based on a maximum mission estimate. The LUCP utilized Federal
Aviation Administration (FAA) methodology to determine the Annual Service
Volume of the Travis AFB runway and taxiway system. By defining the
maximum mission annual operations, a realistic level for future noise
contours can be established. The LUCP noise contours cover a larger area
than the AICUZ noise contours and will be utilized in this TSS in order to
maintain mission noise protection and civilian development. The 2015
maximum mission noise contours are depicted on Figure 4.
Airspace Control (Figure 5)
To help air traffic controllers and pilots deal with varying traffic conditions in
the sky, United States airspace has been separated into six different classes
(A, B, C, D, E, and G). These different classes have different requirements for
entry into the airspace, pilot qualifications, radio and transponder
equipment, and Visual Flight Rules (VFR) weather minimums.
Within the TSS Study Area, Travis AFB is surrounded by Class D airspace. The
vertical boundary is 2,600 feet above the airport elevation (the ceiling). The
core surface area has a radius of four nautical miles. Class D airspace reverts
to class E or G during hours when the air traffic control tower is closed, or
under other special conditions. Figure 5 shows the FAA Sectional Chart of
the area and shows the Class D airspace areas described.
Part 77 Vertical Obstruction Compliance (Figure 6)
The 500‐foot rule, promu