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Trip purpose (Bmkh)

Computer viruses ()
Transportation operations (B)
     Related Term (Associative): Management and organization (C)
    Travel (Bm)
         Use For: Journeys; Trips
        Travel demand (Bmk)
             Use For: Travel models (Travel demand)
             Related Term (Associative): Computer viruses ()
            Traffic estimation (Bmkb)
                 Use For: Trip estimation
            Trip purpose (Bmkh)
                Airport access (Bmkha)
                     Use For: Access to airports
                Business trips (Bmkhb)
                     Use For: Business travel
                Emergency trips (Bmkhe)
                Medical trips (Bmkhm)
                Recreational trips (Bmkhq)
                Shopping trips (Bmkhs)
                School trips (Bmkht)
                Tourism (Bmkhu)
                     Use For: Tourist trade
                     Related Term (Associative): Cruise lines (Nbbcma)
                Work trips (Bmkhw)
                     Use For: Journey to work
                     Related Term (Associative): Commuting (Bmn)