The human eye involuntarily focuses on the strongest light source and adapts to it. The time available for navigation and hazard detection is reduced. The eyes are strained and fatigue sets in.
Advertising installations such as LED screens, lighting effects with such equipment as skybeamers, flashing warning lights, street lights and oncoming headlights can all irritate and distract the driver, and this can have serious consequences.
More light does not always mean better vision. Intelligent lighting design with glare-free, spatial orientation lighting of the required intensity can increase the level of road safety.