Driver hits a tree limb trying to avoid speeding and weaving dump truck — Preventable crash or not?

This video is an adaptation of a scenario from CCJ’s Preventable or Not manuals. It is presented via a partnership between CCJ and Instructional Technologies. Box truck driver John Doe veered into the highway’s shoulder and struck a tree limb while trying to avoid a speeding and weaving dump truck. Was this crash preventable or not?

See more Preventable or Not scenarios at this link.