One thing that all vehicles have in common is that “blind spots” exist in the driver’s visibility. The blind spots or blind areas continue to exist even though the equipment has mirrors as designated by the Federal Government and even when the operator adds on convex, or other enhanced mirrors designed to improve the driver’s view.
In 2001, when the National Institute for Occupational Safety and Health Administration (NIOSH) started evaluating promising strategies to prevent injuries to workers from being struck by construction vehicles and equipment in the work zone, a definition of blind areas was developed: