AIRPORT PLANNING MANUAL 7.6. FLEXIBLE PAVEMENT REQUIREMENTS, LCN METHOD The LCN method presents curves for flexible pavements. They have been built using procedures and curves in the ICAOAerodrome Design Manual, Part 3 - Pavements, Document 9157-AN/901, 1983. The same chart includes the data of equivalent single-wheel load versus pavement thickness. EFFECTIVITY: ALL Section 7 Page 7-8 Dec08/03 b-apm1346