RAIL SYSTEM FOR A FREIGHT TRANSPORTATION SYSTEM

摘要

A rail system for a freight transportation system, comprising: a concrete substrate; a plurality of flat rail sections coupled to the concrete substrate and arranged in an end-to-end manner; wherein the junction of adjacent rail sections comprise at least one protrusion coupled to a first end of one of the rail sections and at least one recess formed in a second end of the other rail section; and wherein the protrusion is disposed within the recess in such a manner that a spacing exists between a free end of the protrusion and a bottom of the recess to allow the rail sections to expand and contract as the temperature of the rail sections change.