Lesson 2/Learning Event 1
TABLE 11. RELATIONSHIP BETWEEN TRAFFIC AND PAVEMENT DESIGN THICKNESS
Determine Traffic Areas
Theater of Operations airfield pavements can be grouped into two traffic areas, designated type B and
type C, as defined below.
Type B
Type B traffic areas are those in which the traffic is more evenly distributed over the full width of the
pavement but which receive the full design weight of the aircraft during traffic operations. These areas
are:
1. End 1,000 feet of runways
2. Primary taxiways
3. All aprons, warm-up hardstands, and aircraft power-check pads.
Type C
Type C traffic areas are those in which the volume of traffic is low or the weight of the operating aircraft
is less than the design weight. This area is the interior portion of runways between the 1,000 foot ends.
Figure 12 shows the traffic are of a typical Theater of Operations airfield. Additional information about
traffic areas can be found in TM 5-330.
Selection of Design for Select Material and Subbases
The selection of materials is the same as in Lesson 1, Learning Event 2.
TABLE 12. RECOMMENDED MAXIMUM PERMISSIBLE VALUES OF GRADATION AND
ATTERBERG LIMIT REQUIREMENTS IN SUBBASES AND SELECT MATERIALS FOR
AIRFIELDS
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