5.1.4 Signal panels and signal area
Note.— The inclusion of detailed specifications for a
signal area in this section is not intended to imply that one
has to be provided. Attachment A, Section 17, provides
guidance on the need to provide ground signals. Annex 2,
Appendix 1, specifies the shape, colour and use of visual
ground signals. The Aerodrome Design Manual (Doc 9157),
Part 4, provides guidance on their design.