
Monthly year-over-year percent change in intermodal shipments of 20-foot, 40-foot and 53-foot units in the United States.March 53-foot traffic advanced 12.1 percent sequentially, 20-footers were up 10.9 percent and 40-footers, 10.2 percent. March 53-foot traffic was 11.7 percent ahead year-over-year, 40-footers up 4.4 percent and 20-footers up 3.8 percent. Year-to-date,