CS ADR-DSN.D.325 Grading of taxiway strips

(a)The safety objective of the grading of a taxiway strip is to reduce the risk of damage to an aircraft accidentally running off the taxiway.

(b)The centre portion of a taxiway strip should provide a graded area to a distance from the centre line of the taxiway of not less than that given by the following tabulation:

(1)10.25 m where the OMGWS is up to but not including 4.5 m;

(2)11 m where the OMGWS is 4.5 m up to but not including 6 m;

(3)12.50 m where the OMGWS is 6 m up to but not including 9 m;

(4)18.50 m where the OMGWS is 9 m up to but not including 15 m, where the code letter is D;

(5)19 m where the OMGWS is 9 m up to but not including 15 m, where the code letter is E;

(6)22 m where the OMGWS is 9 m up to but not including 15 m, where the code letter is F.

[Issue: ADR-DSN/4]