RoadRailers were a trailer or semi-trailer that could be hauled on roads by a tractor unit and then by way of a fifth wheel coupling, operate in a unit train on railway lines. The RoadRailer system allowed trailers to be pulled by locomotives without the use of flatcars, instead attaching trailers directly to bogies.
RoadRailers were a trailer or semi-trailer that could be hauled on roads by a tractor unit and then by way of a fifth wheel coupling, operate in a unit train on railway lines. The RoadRailer system allowed trailers to be pulled by locomotives without the use of flatcars, instead attaching trailers directly to bogies.
==Overview== thumb|300px|right|Side view of a Roadrailer's dedicated Bogie|regular truck showing the connection between two trailer bodies. This image shows only one fifth wheel. thumb|300px|Northbound Roadrailer at Fields, Oregon|Fields, July 1998 The advantage of using roadrailers was their ability to be used directly behind other freight (or even passenger) equipment without the use of trailer flatcars.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).