Page 359 - Planning and Design of Airports
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314    Airp o r t  D e sign


                                            2 FT. MAX
                                            (610 mm MAX)



                    TAXIWAY CENTERLINE
                         LIGHT



                                                                  2 FT. ± 2 IN.
                                                                (610 mm ± 50 mm)
                               9 FT.
                             10 IN. ± 2 IN.
                             (3 m ± 50 mm)    IN-PAVEMENT
                                              RGL FIXTURE



                 FIGURE 8-17  Runway guard lights.
                 Runway Stop Bar
                 Similar to runway guard lights, runway stop bar lights are in-pavement
                 lights on taxiways at intersections with runways. As opposed to RGLs
                 that provide warning to pilots approaching a runway, runway stop bar
                 lights are designed to act as “stop” lights, directing aircraft and vehicles
                 on the taxiway not to enter the runway environment. Runway stop bar
                 lights are activated with red illuminations during periods of runway
                 occupancy or other instances where entrance from the taxiway to the
                 runway is prohibited. In-pavement runway stop bar lighting is typi-
                 cally installed in conjunction with elevated runway guard lights located
                 outside the width of the pavement. An illustration of a typical runway
                 stop bar lighting system is depicted in Fig. 8-18.


                           B
                          10 FT (3 M) MIN.                      B
                          17 FT (5 M) MAX.
                       3 FT. 5 IN.  10 FT.
                       (1 M) MIN.  (3 M) MAX.              2 FT. ± 2 IN.
                                                           (610 mm ± 50 mm)
                 Y         R                                    R         Y
                                       R UNI           R UNI
                           B                                    B
                                                   9 FT. 10 IN. ± 2 IN.
                                         N.T.S.
                                                   (3 m ± 50 mm)
                                               NOTES
                    LEGEND
                                               1.  THE ELEVATED RUNWAY GUARD LIGHT
                 R UNI  IN-PAVEMENT STOP BAR FIXTURE  AND ELEVATED STOP BAR MAY BE MOVED
                                               UP TO 10 FEET (3 M) MAX. AWAY FROM
                   R  ELEVATED STOP BAR FIXTURE  THE RUNWAY TO AVOID UNDESIRABLE
                                               SPOTS.
                   B  TAXIWAY EDGE LIGHT
                                               2.  WHERE SNOW REMOVAL OPERATIONS
                                               OCCUR. IT IS ADVANTAGEOUS TO INSTALL
                   Y     ELEVATED RUNWAY GUARD LIGHT  ELEVATED STOP BAR LIGHTS NOT CLOSER
                                               TO THE TAXIWAY EDGE THAN THE LINE OF
                                               TAXIWAY EDGE LIGHTS.
                 FIGURE 8-18  Runway stop bar lighting.
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