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A high-ranking federal safety regulator said truck-involved fatalities have been stuck at a “relatively flat” level for years, and that trend leads officials at the National Highway Traffic Safety Administration to recommend using “Buck Rogers”-style technologies to lower accident rates.

Less-than-truckload carrier Old Dominion Freight Line said Monday it signed an agreement to buy a Montana trucking company. Terms were not released.

The average national price of retail diesel fuel held at $3.28 a gallon from a week ago, the Department of Energy said Monday.

Wholesale inventories rose 1.1% in December, though sales fell 0.7%, the Commerce Department said Friday.

Freight forwarder UTI Worldwide plans to cut its workforce by 7%, eliminate divisions in the Americas and Africa and restructure management in an effort to its boost its profitability, the company said Friday.

Three of the primary measures of large truck safety fell to record lows in 2006, American Trucking Associations said Friday.

Navteq Corp., a maker of maps used in transportation navigation, said its fourth-quarter profit rose to $61.9 million, or 61 cents per share, from $42.9 million, or 45 cents, a year earlier.

Truckload carrier P.A.M. Transportation Services said it lost $840,000, or 8 cents a share, in the fourth quarter, compared with net income of $4.3 million, or 41 cents, a year earlier.

Vitran Corp. said Friday its fourth-quarter profit was $1.7 million, or 12 cents a share, down from $5 million, or 37 cents, a year earlier.