RailRunner intermodal trains are assembled directly from the container-carrying RailRunner highway chassis, using compact specialized rail vehicles called "bogies." The chassis and container are coupled to the bogie. The highway wheels are raised pneumatically, allowing the highway wheels to clear the track, thus transforming the road vehicle to a rail vehicle in a matter of minutes. Train assembly requires no lifting of the shipping container, and is fast, simple and cost-efficient, comparing favorably with container unit loading times of traditional intermodal.

This advanced RailRunner system requires far less capital equipment and cost for building and operating terminals (i.e., reach stackers, or expensive cranes in traditional intermodal "hubs"), therefore RailRunner train assembly p