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Return on investment is a standard measurement of the dollar value of an information technology system. Small or medium-sized fleets likely focus their financials on cost per truck — “per seat,” in the IT lexicon.

Ryder System said Friday that that aerospace firm Boeing Co. has chosen Ryder to provide global transportation management services.

The California Air Resources Board, in a September staff report, proposed to require Class 8 trucks to be outfitted with fuel-efficiency technologies such as cab fairings, skirts, low-rolling-resistance tires and automatic tire-inflation systems by 2010.

NASHVILLE, Tenn. — Cummins Inc. said it will not use selective catalytic reduction for its 2010 heavy-duty engines, making it the first manufacturer to reject the urea-based system widely used in Europe to cut emissions.

Hybrid drivetrains, combining diesel and electric power and developed by Eaton Corp., will be available in 2008 on medium-duty truck chassis made by Freightliner Corp., International Truck and Engine Corp. and Paccar’s DAF, Kenworth Truck Co. and Peterbilt Motors Co., according to several announcements by the manufacturers involved.

Tire wear and tear is inevitable, but carriers can minimize its effects by choosing high-quality materials and being rigorous about maintenance and checking correct air pressures, several fleet maintenance chiefs and tire manufacturers say.

Transportation technology provider TMW Systems said Monday it acquired Integrated Support Decision Corporation, for an undisclosed sum.

Federal rail regulators are backing a technological change that will enable trains to stop more quickly while permitting them to travel longer distances between required brake tests, the Associated Press reported Tuesday.

An Italian manufacturer chose Ryder System to manage its supply chain operations in China, Ryder said late Tuesday.