AC 150/5340-1, Standards for Airport Markings. AC 150/5340-18, Standards for Airport Sign Systems. 2-3-2. Airport Pavement Markings. a. General. For the purpose of this presentation the Airport Pavement Markings have been grouped into four areas: 1. Runway Markings. 2. Taxiway Markings. 3. Holding Position Markings. 4. Other Markings. b