Jim Park

Jim Park was a CDL driver and owner-operator from 1978 until 1998, when he began his second career as a trucking journalist. During that career transition, he hosted an overnight radio show on a Hamilton, Ontario radio station and later went on to anchor the trucking news in SiriusXM's Road Dog Trucking channel. Jim is a regular contributor to Today's Trucking and Trucknews.com, and produces Focus On and On the Spot test drive videos.

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Is your Truck Putting You to Sleep?

A ground-breaking bit of research from Australia has shown that low-frequency vibrations can make drivers drowsy. If this is true and the research is proven conclusive, it will call into question just about all we assume about truck crashes where the driver apparently fell asleep at the wheel. Those drivers may in fact have been very drowsy but may not have been "fatigued" in an hours-of-service (HOS) context, the way that term is typically applied to "tired drivers."