Temperature Measurements. When new runways are designed for existing
airfields, measure air temperature at a point 5 feet above the surface of an
existing runway or paved area, and correlate with the mean highest temperature
recorded by the National Weather Service or other long-term weather
observations. Protect temperature measuring instruments from heat radiated by
the pavement. For new air stations, compare temperatures 5 feet above
pavements of existing runways at nearest airport having recorded temperatures,
and estimate the possible correction factor for the new site. When measuring
air temperatures above existing pavements, select pavements with the same color
and composition as a proposed pavement, whenever possible.
Pavement. The strength and dimensions of the runway and the shoulders
must be determined.
Runway. Load-bearing capacity shall be provided for the wheel loadings
and tire pressures of the design aircraft in accordance with MIL-HDBK-1021/2,
General Concepts for Airfield Pavement Design, MIL-HDBK-1021/4, Rigid Pavement
Design for Airfields, and NAVFAC DM-21.03, Flexible Pavement Design for
Airfields. For selection of pavement type, see MIL-HDBK-1021/2,
MIL-HDBK-1021/4, and NAVFAC DM-21.03. High-speed jet aircraft need the maximum
practicable pavement surface smoothness attainable, consistent with adequate
braking and nonskid characteristics. For dimensions, grades, and other
criteria, see Table 2.
Runway Shoulders. The inner 10 feet of the shoulder, contiguous to the
landing area pavement, shall be paved. See MIL-HDBK-1021/2, MIL-HDBK-1021/4,
and NAVFAC DM-21.03 for design loadings and thickness design procedure. The
remainder of the shoulder is not designed to support aircraft or vehicular
loading. For dimensions and surfacing criteria, see Table 3.
Other Areas. The other areas include the intermediate areas between
runways and taxiways and the overrun and clear zone areas at the ends of the
Intermediate Areas. Sizes of intermediate areas are determined by
runway and taxiway layout. In width, the intermediate area extends from the
edge of the runway shoulder to the runway clearance line or to the edge of the
shoulder of a parallel runway or taxiway, whichever comes first. For typical
dimensions and grade requirements for single and dual runway systems, see
Figures 4, 5, 6, 7, and 8. Intermediate areas shall be cleared, graded, and
protected against erosion.
Overrun Areas. For typical configurations of stabilized areas, blast
protective pavement, and overrun areas, see Figures 4, 5, and 6. Dimensions,
grades, and surfacing of these areas shall be in accordance with criteria in
Table 4. See Figures 9 through 12 for longitudinal grades and transverse