Smith Transportation Services, a company based in Sunrise, Fla., that specializes in “load-to-ride” service for shippers of less-than-truckload freight, is being purchased by a group of Smith’s top executives and the New York-based investment firm Post Capital Partners.

NORFOLK, Va. ­­— CSX Transportation Inc. is suing Norfolk Southern Railway and the Chesapeake-based Norfolk & Portsmouth Belt Line Railroad, alleging that they have conspired to create a monopoly at Norfolk International Terminals by essentially boxing out CSX at the Port of Virginia’s largest container facility.

CHICAGO — Carrier Logistics Inc., a provider of management software for less-than-truckload operations, has transitioned to new leadership and is exploring opportunities to add deeper data analytics and artificial intelligence.

Diversified carrier Smith Transport Inc. announced it has been selected as the on-site transportation provider for the Walmart Inc. distribution center in Bedford, Pa.

The owners of two long-established trucking companies specializing in food-grade transportation services — Cliff Viessman Inc. in Gary, S.D., and Johnsrud Transport Inc. in Des Moines, Iowa — have agreed to merge their businesses.

XPO Logistics said it plans to deploy 5,000 robots to work with humans in the company’s warehouses and distribution centers in North America, the United Kingdom and eight countries in Europe.

Centurion Auto Logistics is expanding its fleet with the purchase of 23 new tractor-trailer units and the addition of technology to help drivers manage information about vehicle deliveries.