Paragraph 4 Passenger information

(1)

If horizontal or vertical scrolling displays are used—

(a)

any station names (which may be abbreviated) and any other complete words or messages must be displayed for a minimum of 2 seconds; and

(b)

horizontal scrolling displays must have a scrolling speed not exceeding 6 characters per second.

(2)

In displays, ascenders and descenders must have a minimum size ratio of 20% to upper case characters.

(3)

In this paragraph—

(a)

“ascender” means that part of any of the letters b, d, f, h, i, j, k, l or t which protrudes above the height of other letters;

(b)

“descender” means that part of any of the letters g, j, p, q or y which protrudes below the level of the base of other letters; and

(c)

“other letters” means the letters a, c, e, m, n, o, r, s, u, v, w, x and z.