"Shippers who use Union Pacific Railroad equipment in Southern California have seen spot quotes skyrocket more than 40 percent since June 1 due to the most severe equipment shortage in two years, according to four intermodal marketing companies (IMCs). There doesn’t seem to be a single reason for the shortage, according to the IMCs — who spoke on the condition of anonymity — but rather a combination of UP not having enough locomotives, flatcars, and containers in circulation amid a surge in e-commerce business..."
Journal of Commerce