https://www.pitara.com/tags/traffic-lights/Recent content in Traffic Lights on Pitara Kids NetworkHugoen-usSat, 13 Jun 2026 21:46:31 +0530https://www.pitara.com/science-for-kids/5ws-and-h/who-invented-traffic-lights/Tue, 29 May 2001 01:06:14 +0000https://www.pitara.com/science-for-kids/5ws-and-h/who-invented-traffic-lights/<p>Long before roads needed traffic lights, railways were using a system of signals to control train traffic. In the early railways, a single track was used for both up-going and down-going trains, and safety depended on spacing the arrival and departure of trains according to time intervals.</p> <p>These signals consisted of a ball and something that looked like a kite. When the kite was raised on top it indicated danger while if the ball was raised, it indicated the all clear.</p>