Two logistics companies expanded through acquisitions, with a Philadelphia freight forwarder buying parts of two California firms and a Detroit-area company buying a Spanish firm.

American Trucking Associations and the Port of Los Angeles have completed filing written legal arguments over the port’s attempted ban on independent owner-operators.

Forward Air Corp. said late Monday its fourth-quarter net income almost doubled, to $11.8 million, or 41 cents per share, from $6.3 million, or 22 cents, a year earlier.

Intermodal traffic grew at the fastest pace in nearly three decades during 2010, and the combination of a strengthening economy and tightening truck capacity will spark further growth this year, the Intermodal Association of North America reported.

Consumer confidence rose to an eight-month high this month, according to the Thomson Reuters/University of Michigan consumer sentiment index released Friday.

Express-1 Expedited Solutions’ second-quarter profit rose to $820,000, or 2 cents per share, from $601,000, or 2 cents, a year earlier.

Logistics firm DHL said it will spend $22.5 million to expand its hub at Cincinnati/Northern Kentucky International Airport, adding nine new aircraft gates.