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Routes (Bbhe)

Transportation operations (B)
     Related Term (Associative): Management and organization (C)
    Freight and passenger services (Bb)
        Routes and routing (Bbh)
            Routes (Bbhe)
                Hub and spoke systems (Bbhea)
                Bus routes (Bbheb)
                Fixed routes (Bbhec)
                Trade routes (Bbhed)
                Air routes (Bbhef)
                Land bridge (Bbhek)
                Truck routes (Bbhet)
            Routing (Bbhr)
                 Related Term (Associative): Traffic assignment (Btha)
            Door to door service (Bbht)
                 Related Term (Associative):