Page 250 - Planning and Design of Airports
P. 250

214    Airp o r t  D e sign



                                              Airplane Design Group
                                    I      II    III   IV     V      VI
             Visual or nonprecision
             runway
              Centerline to
                 Taxiway or taxilane   300  300  400   400    400 ¶  600
                 centerline *
               Hold line *          250    250   250   250    250    250
                 Helicopter touchdown   400  400  400  400    400    400
                 pad
               Aircraft parking area  400  400   500   500    500    500
             Precision instrument
             runway
              Centerline to
                 Taxiway or taxilane   400  400  400   400    400 ¶  600
                 centerline *
               Hold line *,§        250    250   250 †  250 †  280 ‡  325
                 Helicopter touchdown   400  400  400  400    400    400
                 pad
               Aircraft parking area  500  500   500   500    500    500


            * Satisfies the requirement that no part of an aircraft at a holding location or on a taxiway
             centerline is within the runway safety area or penetrates the obstacle free zone. Accord-
             ingly, at higher elevations an increase to these separations may be needed to achieve
             this result.
            † For aircraft in aircraft approach category C and airplane design groups III and IV increase
             by 1 ft for each 100 ft of airport elevation greater than 3200 ft.
            ‡ For aircraft in aircraft approach category C and airplane design group V increase by 1 ft
             for each 100 ft of airport elevation above mean sea level.
            § For aircraft in aircraft approach category D increase by 1 ft for each 100 ft of airport ele-
             vation above mean sea level.
            ¶ For airports at or below an elevation of 1345 ft; increase to 450 ft for airports at elevations
             between 1345 and 6560 ft and to 500 ft for airports at an elevation above 6560 ft.
            Source: Federal Aviation Administration [6].

            TABLE 6-13  Airfield Separation Criteria for Aircraft in Approach Categories C and
            D, ft


                    When the runway protection zone begins at a location other than
                 200 ft beyond the end of the runway due to the application of the
                 declared distance concept discussed in Chap. 2, two runway protec-
                 tion zones are usually required, an approach runway protection zone
                 and a departure runway protection zone. The dimensions of the
                 approach runway protection zone are given in Table 6-16 but the
                 departure runway protection zone begins 200 ft beyond the far end of
   245   246   247   248   249   250   251   252   253   254   255