CS ADR-DSN.D.280 Transverse slopes on taxiways

(a)The safety objective of taxiway transverse slopes is to promote the most rapid drainage of water from the taxiway.

(b)The transverse slopes of a taxiway should be sufficient to prevent the accumulation of water on the surface of the taxiway but should not exceed:

(1)1.5 % where the code letter is C, D, E, or F; and

(2)2 % where the code letter is A or B.