Page 387 - Planning and Design of Airports

338 Airp o r t D e sign

3. Taxiway location signs installed in conjunction with holding
position signs for taxiway-runway intersections should always
be installed outboard of the holding position sign.
4. Location signs are normally included as part of a direction
sign array located prior to the taxiway intersection. Except for
the intersection of two taxiways, the location sign is placed in
the array so that the designations for all turns to the left would
be located to the left side of the location sign and designations
for all turns to the right or straight ahead are located to the right
of the location sign.
5. All direction signs have arrows. Arrows on signs should be
oriented toward the approximate direction of the turn. Each
designation appearing in the array of direction signs should
only have one arrow. An exception is when the taxiway inter-
section comprises only two taxiways and then the direction
sign for the taxiway may have two arrows.
6. Destination signs should be located in advance of intersec-
tions and should not be collocated with other signs. These
may also be installed on the far side of the intersection when
the taxiway does not continue and direction signs are provided
prior to the intersection.
7. Information signs should not be collocated with mandatory,
location, direction, or destination signs.
8. Each designation and its associated arrow included in the array
of direction signs or destination signs should be delineated from
the other designations in the array by a black vertical border.

Sign Size and Location
Taxiway guidance signs are available in three heights as indicated in
Table 8-7. The choice of a particular size sign involves several factors
including effectiveness, aircraft clearance, jet blast, and snow removal

Perpendicular Distance
Installed from Defined Taxiway/
Sign Legend, Face, (max.), Runway Edge to Near
Size in (cm) in (cm) in (cm) Side of Sign, ft (m)
1 12 (30) 18 (46) 30 (76) 10–20 (3–6)
2 15 (38) 24 (61) 36 (91) 20–35 (6–10.5)
3 18 (46) 30 (76) 42 (107) 35–60 (10.5–18)

TABLE 8-7 Taxiway Signage Dimensional Specifications