Over 600,000 accidents occur each year in the US due to drivers changing lanes without seeing other vehicles. Positioning side mirrors at a 90 degree angle rather than facing the side of the vehicle reduces blind spots and improves visibility of nearby cars. With side mirrors angled outward, drivers will be able to see other vehicles sooner and for longer periods of time, reducing the risk of accidents when changing lanes. The document encourages drivers to reposition their side mirrors to a 90 degree angle in order to improve safety.