Placards aware pedestrians and road motorists with stick-on signs containing safety instructions to ensure safe driving environment and reduce any chances of collision & Improving the road Worthiness for other Motorist ;Hazard signs is also indicated with numerical codes representing hazardous materials being transported.
Alerting car motorist's on a 120 Km/h road maybe highly dangerous indication for a higher incidents "especially in a foggy morning hours” to take caution within the next 150 meter as an average breaking distance.
Even with global positioning systems and other navigational tools available for motorists nowadays, road and traffic signs are still of high importance. Traffic is everywhere; therefore, signs should be everywhere too.
Reflects light back to its source with a minimum of scattering. In a retro-reflector an electromagnetic wave front is reflected back along a vector that is parallel to but opposite in direction from the wave's source.
