The 2024 Top Truck Bottleneck List measures the level of truck-involved congestion at over 325 locations on the national highway system. The analysis, based on an extensive database of freight truck GPS data, uses several customized software applications and analysis methods, along with terabytes of data from trucking operations to produce a congestion impact ranking for each location. ATRI’s truck GPS data is also used to support numerous state and federal freight mobility initiatives. The bottleneck locations detailed in this latest ATRI list represent the top 100 congested locations, although ATRI continuously monitors more than 325 freight-critical locations.