This new book presents an investigation into some of the most common causes that experts believe are responsible for traffic accidents and vehicle crashes. Using the death of Princess Diana and Dodi Fayed in a car accident as the main point of reference, the book explores various factors which could have impacted upon their death, and that of many other people. Many incidents of mortality on the roads are due to the inadequate provision that is made in the country regarding examination of the visual performance of drivers. Especially when driving at night, even drivers with a full visual function reach their psychological limit, with the glare of headlights and street lamps also serving as a considerable impediment. This book emphasizes that regular visual testing of a driver with glare source-based stimuli and application of lenses equipped with the anti-reflection coatings, traffic accidents and deaths could be considerably reduced.