Page 347 - Planning and Design of Airports

Airport Lighting, Marking, and Signage 305

200' max
10' 2' min 2' min
ctr to ctr 10' max 10' max

10'
ctr to ctr
400' max
W
DETAIL A: Threshold/Runway End Lights 200' max
Installed with LIRL’s or MIRL’s
DETAIL A
W
200' max 200' max W
G R W 20

G R
B W W
B
taxiway W
NOTES:
B B 1. Install six threshold lights on visual runways.
2. Install eight threshold lights on instrument runways.
3. For intersections, uniform spacing is maintained by
W installing a single elevated edge light on the runway
opposite the missing light position.
4. Gaps between lights on a single side of the runway must
not exceed 400 ft.
5. Markings are for information only, refer to AC 150/5340-1
for appropriate runway markings.
FIGURE 8-9 Low-intensity runway edge lighting specifi cations (Federal Aviation
Administration).

the black hole effect and provide adequate guidance during very
poor visibility conditions, runway centerline and touchdown zone
lights are typically installed in the pavement. An illustration of run-
way centerline lighting is provided in Fig. 8-12.
These lights are usually installed only at those airports which are
equipped for instrument operations. These lights are required for ILS
category II and category III runways and for category I runways used
for landing operations below 2400 ft runway visual range. Runway cen-
terline lights are required on runways used for takeoff operations below
1600 ft runway visual range. Although not required, runway centerline
lights are recommended for category I runways greater than 170 ft in
width or when used by aircraft with approach speeds over 140 kn.
When there are displaced thresholds, the centerline lights are
extended into the displaced threshold area. If the displaced area is not
used for takeoff operations, or if the displaced area is used for takeoff
operations and is less than 700 ft in length, the centerline lights are
blanked out in the direction of landing. For displaced thresholds greater
than 700 ft in length or for displaced areas used for takeoffs, the center-
line lights in the displaced area must be capable of being shut off during
landing operations.