I feel like an important modifier has been left out, or something lost in the retelling. Prior to World War II, intercity trucking was still in its infancy, and cross-country motor travel was quite modest in numbers. Any nonmetropolitan highway intersection would have only a fraction of the traffic volumes found on Chicago's Michigan Boulevard, on New York's Broadway or Holland Tunnel approach, on Philadelphia's North Broad Street. Even if the claim is "busiest highway intersection," that seems unlikely, as New Jersey, Cook County (Chicago), Wayne County (Detroit), and Los Angeles County already had suburban highway intersections so busy they required grade separations. In addition, by the 1930s, any significant cross-country traffic would be using US 20 through Michigan City, or US 30 through Valparaiso, never going near Westville.