Operational requirements for long-wheelbase flat wagons for expedited transportation of refrigerated containers on long routes.

The increase in container transportation c leads to the need to develop expedited delivery of refrigerated containers using long-wheelbase flat wagons (with the ability to also transport containers of 20, 40, 53 ft) capable of moving at speeds up to 140 km/h in fast freight trains. Analysis of the technical and economical parameters of the four-axle flat wagons with three-element bogies (speed up to 90 km/h, axle load up to 23.5 t, containers of 20 and 40 ft) currently used for the transportation of containers, shows their non-conformity with the operational requirements in terms of speed of delivery and dimensions of transportation of perishable goods. The operational characteristics were considered and the requirements for prospective flat wagons for the expedited transportation of refrigerated containers were formed. On the basis of the requirements, an overview of the design of a new high-speed six-axle longwheelbase flat wagon for the transportation of refrigerated containers is proposed. [ABSTRACT FROM AUTHOR]