Dấu hiệu thông tin cho phép phi công và trình điều khiển xe liên tục theo dõi các vị trí của họ trên vùng di chuyển-ment. Những dấu hiệu này nhằm mục đích là một trợ giúp để điều hướng an toàn và hiệu quả của tất cả các máy bay và các phương tiện.11.5.2 dấu hiệu thông tin bao gồm: dấu hiệu hướng, vị trí dấu hiệu, dấu hiệu điểm đến, băng lối ra dấu hiệu, dấu hiệu đường băng troáng và giao điểm cất dấu hiệu.11.5.3 Examples of information signs are shown in Figure 11-5. Sign systems displaying a combination of location and direction information are the most commonly used. In Figure 11-5, four examples are given of this type of application. The two simplest examples are alternative ways of indicating prior to a position, where only two taxiways intersect, the designation of the taxiway on which the aircraft or vehicle is currently located and the desig- nation of the crossing taxiway. From this information and reference to an aerodrome map, pilots and vehicle drivers can uniquely identify their exact location and the direction that they must take at the junction to remain on their assigned route.11.5.4 It is only for this simplest of taxiway layouts that the option of placing the location information at the end of the sign array is permitted. At all other, more complex intersections the position of the location sign and the associated direction signs must correspond to the convention that the sign layout should directly reflect the intersection geometry. All taxiways requiring a turn to the left must be indicated by a sign inscription placed to the left of the location sign, and all turns to the right must be indicated by a sign inscription placed to the right of the location sign. In addition, the order in which the crossing taxiway information is displaced from the location sign is determined by the magnitude of the turn required to enter that designated taxiway. Thus taxiways that require the smallest change of direction are placed closest to the location sign and those requiring the greatest change of direction are placed furthest from the location sign.11.5.5 During the development of the signage system, it was demonstrated that by using the sign layout adopted in the standard described above, pilots needed less time to read and interpret the information than with any other layout. Furthermore, they did not make the mistakes in interpreting the taxiway configuration that occurred when testing other sign layouts.
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