Commercial trailer net orders rose 55% in August from a year earlier, ACT Research Co. said.

Air quality agencies tasked with reducing pollution in Southern California cannot impose emissions limits on idling trains, a federal appeals court ruled.

NEW YORK — Railroads large and small gave investors two consistent messages — economic growth will be slow but steady, and they will continue their commitment to investing in new projects such as freight corridors.

Trailer manufacturers say they are having problems finding enough tires to meet the surge in equipment orders, forcing them to take stiff price increases and offer customers less familiar tire brands.

Federal legislation that would ban the use of double-decker trailers to transport horses has drawn the ire of trucking and other interest groups because they say there has not been adequate debate.

Trailer Bridge Inc. reported its second-quarter profit improved to $900,000, or 7 cents per share, from $650,000, or 5 cents, a year ago.

Legislation that would ban the transportation of horses in double-decker trailers would cost the nearly 80 contractors who transport livestock to rodeos all over the U.S. more than $4 million in extra operating and equipment costs, according to estimates by the Professional Rodeo Cowboys Association.

New orders for commercial trailers, led by dry van orders, more than doubled in June, surging 103% over the same month last year, ACT Research Co. reported.

Great Dane Trailers president and chief operating officer Phill Pines will retire at the end of this year after more than 50 years in the trailer industry, the company said Thursday.