8/15/19 AIM  FIG 2 − 3 − 8 Enhanced Taxiway Centerline FIG 2 − 3 − 10 Taxi Shoulder Markings YELLOW STRIPES PAVEMENT EDGE TAXIWAY EDGE MARKINGS RUNWAY DOUBLE YELLOW LINES TAXIWAY EDGE MARKINGS CONTINUOUS TAXIWAY EDGE MARKINGS DASHED FIG 2 − 3 − 9 Dashed Markings centerline, and signs indicating turns to the right being on the right side of the centerline. (See FIG 2 − 3 − 11.) f. Surface Painted Location Signs. Surface painted location signs have a black background with a yellow inscription. When necessary, these markings are used to supplement location signs located along side the taxiway and assist the pilot in confirming the designation of the taxiway on which the aircraft is located. These markings are located on the right side of the centerline. (See FIG 2 − 3 − 11.) g. Geographic Position Markings. These mark- ings are located at points along low visibility taxi routes designated in the airport’s Surface Movement Guidance Control System (SMGCS) plan. They are used to identify the location of taxiing aircraft during low visibility operations. Low visibility operations are those that occur when the runway visible range (RVR) is below 1200 feet (360m). They are positioned to the left of the taxiway centerline in the direction of taxiing. (See FIG  2 − 3 − 12.) The geographic position marking is a circle comprised of an outer black ring contiguous to a white ring with a pink circle in the middle. When installed on asphalt or other dark-colored pavements, the white ring and the black ring are reversed (i.e., the white ring becomes the outer ring and the black ring becomes the inner ring). It is designated with either a number or a number and letter. The number corresponds to the consecutive position of the marking on the route. e. Surface Painted Taxiway Direction Signs. Surface painted taxiway direction signs have a yellow background with a black inscription, and are provided when it is not possible to provide taxiway direction signs at intersections, or when necessary to supplement such signs. These markings are located adjacent to the centerline with signs indicating turns to the left being on the left side of the taxiway Airport Marking Aids and Signs 2 − 3 − 10