bassbonebobo From United States of America, joined Apr 2008, 68 posts, RR: 0
Reply 5, posted (4 years 3 months 1 week 23 hours ago) and read 3845 times:
FAR part 25.810
Quote: (c) An escape route must be established from each overwing emergency exit, and (except for flap surfaces suitable as slides) covered with a slip resistant surface. Except where a means for channeling the flow of evacuees is provided—
(1) The escape route from each Type A or Type B passenger emergency exit, or any common escape route from two Type III passenger emergency exits, must be at least 42 inches wide; that from any other passenger emergency exit must be at least 24 inches wide; and
(2) The escape route surface must have a reflectance of at least 80 percent, and must be defined by markings with a surface-to-marking contrast ratio of at least 5:1.
No reference to color. The markings just have to contrast with the background significantly.