The FreightWaves (NTI), is a seven-day moving average of spot rates that measures the U.S. for-hire, over-the-road dry van trucking market. NTI is calculated on a composite national aggregated level of the Rate Per Mile for fully enclosed, non-refrigerated, 48- or 53-foot trailers moved by Class 8 tractors. The index is based on eligible spot market transactions submitted by Data Providers. Details on the methodology can be found in the FreightWaves National Truckload Daily Index Methodology.