Dry vans are defined as fully enclosed, non-refrigerated, 48- to 53-foot trailers moved by Class 8 tractors. FreightWaves also provides TRAC lane spot data on Reefer (fully enclosed, refrigerated, 48- or 53-foot trailers moved by Class 8 tractors) and Flatbed (48- to 53-foot trailers moved by Class 8 tractors). However, national indices for Reefer and Flatbed modes of transport are not available at this time. Future indices may be available for other forms of freight as well as other geographic areas.