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Vitran Corp. said Wednesday its second-quarter profit fell 16% to $4.6 million, or 34 cents a share, from $5.5 million, or 41 cents, a year earlier.

Ryder System Wednesday reported a second-quarter profit of $62.9 million, or $1.10 per share, compared with $65.1 million, or $1.07 per share, a year ago.

Arkansas Best Corp. said Wednesday its second-quarter profit fell 17% to $16.2 million, or 64 cents a share, from $19.6 million, or 78 cents, a year ago.

Truckload carrier Knight Transportation’s second-quarter profit fell to $12.7 million, or 15 cents a share, from $18.2 million, or 21 cents, a year ago.

The House approved a bill by a lopsided margin Wednesday that would restore $8 billion to the federal Highway Trust Fund to avert an expected revenue shortfall in the coming fiscal year.

Truck maker Paccar Inc. said that the company’s president, Tom Plimpton, will become vice chairman, and that Jim Cardillo will become its president, effective Sept. 1.

U.S. economic activity remained generally weak in June and early July, and several regions reported trucking companies were having a hard time recouping higher costs, the Federal Reserve said Wednesday.

Refrigerated truckload carrier Marten Transport’s second-quarter net income fell to $3.5 million, or 16 cents a share, from $4.3 million, or 20 cents, a year ago.