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Trimble Navigation said Monday it has signed an agreement to acquire TMW Systems for $335 million, bringing the transportation software provider together with PeopleNet Communications Corp., which Trimble purchased last year.

MINNEAPOLIS — Trucking companies that rely on wireless technology to improve their operations soon could feel the effects of a looming “capacity crunch” facing the nation’s wireless carriers, an industry leader told truckers.

Many carriers, beset by both the weak economy and pricing competition from brokers and third-party logistics providers, are seeking new ways to win, keep and better serve customers. Business lines such as home delivery, warehousing and alternative mail are adding to — or replacing — revenues cut by the economy and the competition.

As I’m sitting here waiting 14 hours to start out on my 150-mile journey, I’m pondering your thoughts on driver turnover.

So here we are again, trapped in still another fuel-price spiral, as we helplessly watch outside events and parties set the cost and supply of the precious liquids that make our industry possible.

Biodiesel producers said they do not agree with calls for the federal government to waive ethanol and other renewable fuel production mandates because of the drought reducing the corn crop in the Midwest.

New regulatory guidance restricting the use of an hours-of-service exemption for some drivers involved in oil and gas drilling operations is increasing operating costs for the affected carriers, executives told federal regulators.

The top truck technicians from across the country will put their skills to the test at the 2012 SuperTech competition, scheduled for Sept. 10-13 in Pittsburgh.

The National Highway Traffic Safety Administration should provide more flexibility in its proposed mandate that new heavy trucks be equipped with electronic stability control systems, American Trucking Associations said in comments filed last week.