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Most truck makers said they will make important announcements of new products this year at the Mid-America Trucking Show, including Peterbilt Motors Co.’s introduction of a new model.

Truck tonnage rose 3.6% in January, extending a string of year-over-year growth into a fourth year and buoying optimism that steady improvement in the consumer and manufacturing sectors will continue to lift the freight industry.

TransForce Inc.’s fourth-quarter net income rose to C$41.7 million, or 41 cents a share, from C$34.8 million, or 36 cents, a year earlier, the Montreal-based trucking and logistics company said Wednesday.

Class 8 tractors have long been the standard for U.S. for-hire carriers, yet for certain service lines, even the most venerable of heavy-duty fleets are now buying Class 6 and 7 trucks and sometimes even smaller cargo vans.

American Trucking Associations installed a batch of 15 rooftop deck pavers at its Capitol Hill office last month, the latest of 46 pavers to be placed at the Washington, D.C., building, the group announced last week.

LAS VEGAS — Terry Dotson never set out to be a truck salesman, but he was so good on the lot selling big rigs that he rose eventually to be chairman and CEO of Worldwide Equipment Enterprises Inc.

Officials of brake manufacturer Bendix Commercial Vehicle Systems said they are wrestling with the challenge of manufacturing and distributing replacement parts for a defective valve that could cause braking problems, which prompted federal and heavy-duty truck manufacturer recalls.

Provisions that would have allowed states to permit larger, heavier trucks on interstate highways were voted down last week, just days after the highway reauthorization bill containing the measures was introduced in the House of Representatives.