LOS ANGELES — For the past five years, top shipping companies pushed forward with fat investments in more and bigger vessels, even as signs of trouble piled up.

The National Retail Federation and other U.S. trade groups are urging the Commerce Department to work with the South Korean government to resolve the Hanjin Shipping Co. crisis, which stranded an estimated $14 billion of goods at sea.

Forward Air Corp. lowered its third-quarter earnings projections, no longer confident that it’ll generate more revenue than the same period in 2015, the company announced on Sept. 20.

HOUSTON — Intermodal businesses that have become accustomed to steady long-term growth are facing the prospect of tougher times ahead in the form of a likely recession and changing freight patterns, three industry experts said Sept. 19.

The Port of New Orleans said it’s begun a Clean Truck Replacement Program that will allow 20 drayage truckers to replace their older Class 8 trucks with newer models.

Hanjin Shipping Co., the South Korean container line that sought bankruptcy protection last month, received a court advisory to return all chartered vessels to cut costs while the company is in the midst of reducing its fleet.

Every logistics company now has its own page, with previously unpublished data. Click on names in rankings below.

Just as highway bottlenecks can impede the transport of goods over the road, congestion in and around the nation’s seaports can disrupt the supply chains of companies that import and export goods.

Cargo stranded by the Hanjin Shipping bankruptcy slowly began to flow through U.S. ports last week, offering the first small signs of relief for truckers and their customers.