Bi-level enclosed autorack

The bi-level enclosed autorack emerged from decades of evolutionary development in rail-based vehicle transportation. Early autoracks of the 1960s were open or semi-open structures mounted on flatcars, offering little protection to the automobiles and light trucks they carried. Theft, vandalism, and weather damage were persistent problems, prompting the industry to move toward fully enclosed designs. By 1973, the first fully enclosed autorack configurations entered service, incorporating solid side panels, end doors, and roof sections that dramatically reduced vehicle damage claims and losses in transit. The bi-level variant of this enclosed design was developed specifically to accommodate taller vehicles such as vans, pickup trucks, and sport utility vehicles, which could not fit within the vertical clearances of the more common tri-level enclosed configuration used for standard passenger automobiles. As the North American automotive market shifted through the 1980s and 1990s toward light trucks, SUVs, and minivans, demand for bi-level capacity grew substantially. Railroads and car leasing pools expanded their bi-level fleets to meet the needs of automakers shipping these taller vehicles from assembly plants to distribution points across the continent. The Trailer Train pool, later reorganized as TTX Company, played a central role in managing and standardizing the flatcar platforms on which many of these racks were mounted. Builders including Gunderson, Trinity Industries, and Greenbrier became the principal manufacturers of bi-level enclosed autorack equipment in the late twentieth and early twenty-first centuries, producing large numbers of cars for the TTX fleet and for individual railroad operators. The bi-level enclosed autorack became an indispensable part of the North American automotive supply chain, with tens of thousands of units in service across the continent. Its development reflected the broader trend toward protecting high-value vehicle cargo while maximizing the number of units that could be moved efficiently per train. The type remains in active service today, handling the bulk of rail movements of trucks, SUVs, and vans from manufacturers such as Ford, General Motors, and Chrysler to dealerships throughout the United States, Canada, and Mexico.

The bi-level enclosed autorack carries the AAR equipment code VA and is built on a flatcar platform typically measuring 89 feet in length with a nominal capacity rating of 70 tons. The two-deck configuration provides the additional vertical clearance necessary to accommodate taller vehicles, with each level designed to accept full-size pickup trucks, sport utility vehicles, and minivans that would exceed the deck-to-deck height available in a tri-level arrangement. The enclosure consists of solid steel side panels, a roof, and hinged or folding end doors that seal the interior during transit, protecting vehicles from weather, debris, and unauthorized access. Loading and unloading is accomplished by driving vehicles on and off the decks via the end doors and adjustable ramps that connect the two levels. The 89-foot overall length represents approximately the practical maximum for interchange service on the North American rail network, as longer cars would encounter clearance difficulties on tight curves at classification yards and on branch lines. Common builders Gunderson, Trinity, and Greenbrier each produced variations on the basic enclosed bi-level design, with some differences in panel construction, door mechanism, and deck adjustment systems, though all conform to AAR interchange standards. The cars are typically paired or grouped in multi-unit sets on longer trains to facilitate efficient loading at automotive assembly plants, where automated or semi-automated loading sequences are coordinated with the car's door and ramp geometry.

Models by: Atlas · ScaleTrains