|Roadrailer Chassis designed to carry 40 foot container.|
The Roadrailer system now uses a two axle, four wheel railroad wheel set. Note: sometimes the wheel set is referred to as a truck (USA) or bogie (Europe). The wheel set for the current Roadrailer vehicles operated by triple Crown Services is separate from the Roadrailer vehicle.
In 1980 the prototype vehicle pictured reflected the system used then. The railroad wheel set is one axle with two wheels. The wheel set was attached to the Roadrailer vehicle. The wheel set was lowered to the rail and the tires were retracted clear of the rail head. The vehicles then as now had a projecting flange at the front of th Roadrailer. A slot to receive the flange making the connection to couple Roadrailer a vehicle into a train was and is located at the rear of the vehicle.
Roadrailer vehicle advantages are that they have less wind resistance and weight in operations than conventional railroad intermodal equipment.
The Roadrailer container chassis never became part of Triple Crown Services. They rely only upon Roadrailer vans for their logistics business.
The current Roadrailer vehicle system has the ability to operate with the single axle design shown.