shoulders

maximum is permitted where arresting systems

are installed.

Where economically feasible, the runway will

No grade

No grade

6

Longitudinal

have a constant centerline gradient from end to

change is to

change is to

runway grade

end. Where terrain dictates the need for

occur less

occur less

changes

centerline grade changes, the distance between

than 900 m

than 300 m

two successive point of intersection (PI) will be

[3,000 ft]

[1,000 ft]

not less than 300 m [1,000 ft] and two

from the

from the

successive distances between PIs will not be

runway end

runway end

the same.

For Army and Air Force.

Max 0.167% per

7

Rate of

30 linear meters

longitudinal

Maximum rate of longitudinal grade change is

[100 linear feet]of runway

runway grade

produced by vertical curves having 180 meters

changes

[600 foot] lengths for each percent of algebraic

difference between the two grades.

For Navy and Marine Corps.

Max 0.10% per 30

linear meters

Maximum rate of longitudinal grade change is

[100 linear feet] of runway

produced by vertical curves having 300 meters

[1,000 foot] lengths for each percent of

algebraic difference between the two grades.

See Remarks

Exceptions: 0.4 percent for edge of runways at

runway intersections.

Any two points 2.4 m [8 ft] above the pavement

8

Longitudinal

Min 1,500 m

must be mutually visible (visible by each other)

sight distance

[5,000 ft]

for the distance indicated.

For runways shorter than 1,500 meters [5,000

ft], height above runway will be reduced

proportionally.

Min 1.0%

New runway pavements will be centerline

9

Transverse

Max 1.5%

crowned. Existing runway pavements with

grade of

insufficient transverse gradients for rapid

runway

drainage should provide increasing gradients

when overlaid or reconstructed.

Slope pavement downwards from centerline of

runway.

1.5% slope is optimum transverse grade of

3-4

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