This document focuses on traffic crash prevention by undertaking a formal systematic checking procedure. Experience around the world has demonstrated that it is possible to substantially reduce potential safety problems by implementing systematic safety checks of proposed road projects at various stages in the planning, design, and construction process. These systematic safety checks known, when formalized, as road safety audits (RSAs) while not guaranteeing total safety, enable many obvious potential hazards to be identified and eliminated before construction. This makes it more likely that the road will operate safely in the environment in which it has to operate.