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Air transportation facilities (Pmf)

Facilities (P)
     Use For: Complexes; Installations
    Transportation, hydraulic and utility facilities (Pm)
        Intermodal facilities (Pme)
        Air transportation facilities (Pmf)
             Use For: Aeronautical facilities; Aviation facilities; Civil aviation facilities
            Airports (Pmfc)
                 Use For: Aerodromes
                 Related Term (Associative): Hubs (Bbhead)
            Air traffic control facilities (Pmfg)
                 Use For: Ground stations
            Airstrips (Pmfk)
                 Use For: Landing strips
                 Related Term (Associative): Airport runways (Pmfcgmr)
            Landing mats (Pmfl)
            Airways (Pmfm)
        Communication facilities (Pmg)
        Hydraulic structures (Pmh)
        Pipeline facilities (Pmn)
        Electric utility facilities (Pmp)
        Highway facilities (Pmr)
             Related Term (Associative): Underground structures (Pdv); Bridges and culverts (Pdy)
        Railroad facilities (Pmu)
             Related Term (Associative): Railroad tunnels (Pdvtrr); Railroad bridges (Pdybmur)