Rolling highway
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In rail transportation, a rolling highway or rolling road is a form of combined transport involving the conveying of road trucks by rail, referred to as Ro-La trains. The concept is a form of piggyback transportation.
Rolling highway on the southern Lötschberg ramp, pulled by two BLS Re 465
ÖBB Class 1016 using Niederflurwagen banking a Rolling highway on the Brenner Railway in Matrei am Brenner
Trucks on the Konkan Railway Rolling Highway
Piggyback (transportation)
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Piggyback transportation refers to the transportation of goods where one transportation unit is carried on the back of something else. It is a specialised form of intermodal transportation and combined transport.
A Nepali child carries another child, "piggyback"
A handball game with piggybacking players in Ancient Greece circa. 500 BCE
Trucks on a train in India
A train of coupled Commonwealth Railways narrow-gauge cattle cars on continuous rails laid on standard gauge flatcars (outback Australia)