This document discusses road signs, signals, and traffic regulations in India. It provides background on the history of traffic lights, dating back to the first electric traffic signal installed in Cleveland, Ohio in 1914. It describes the importance of traffic rules for regulating transportation systems and preventing accidents. Key traffic symbols are illustrated and the functions of traffic signals are explained as allocating right-of-way and metering traffic at intersections and highway on-ramps. The conclusion emphasizes that understanding and following traffic rules and symbols helps maintain orderly traffic flow and prevent accidents.