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Secured Digital Applications, a provider of asset-tracking services, has unveiled its new pocket-size Bluetooth Global Positioning System receiver, saying it offers a cheaper alternative to comparable vehicle-mounted systems.

Fleet management software provider Cadec, Manchester, N.H., said it has joined the Envi-ronmental Protection Agency’s SmartWay Transport Partnership.

FedEx Ground and Parker Hannifin Corp. said Friday they have agreed to test a Class 6 vehicle employing hybrid hydraulic technology that seeks to improve fuel mileage by greater than 50% and significantly reduce engine emissions.

Financial firm Barclays Global Investors, which had been the largest shareholder in Ryder System, has reduced its stake in Ryder by more than 50%, Bloomberg reported.

A large storm system that left ice on roads from the Plains to the Northeast has caused blackouts and led to at least 13 traffic deaths, the Associated Press reported Monday.

Truckload carrier Landstar System will increase fourth-quarter revenue in the “mid-single-digit range,” Chief Executive Officer Henry Gerkens said in a conference call with investors, Bloomberg reported.

Cummins Inc., the largest foreign investor in the Chinese diesel engine industry, received an order for 1,900 bus engines from transit agencies in China, Bloomberg reported.

The number of U.S. heavy-duty trucks on the nation’s roads climbed to 3.59 million in the third quarter, a 3.2% increase over last year and a slight increase over the second quarter gain of 2.2%.

Ryder System said Friday it will combine its U.S. and International Supply Chain Solutions business units to form a single integrated organization to serve SCS customers globally.

Performance Transportation Services, a Wayne, Mich., auto transporter, said it, along with certain subsidiaries, will file for chapter 11 bankruptcy as part of a $67 million deal to sell nearly all of its assets to Allied Systems Holdings.