Traffic is one of life in big cities’ biggest frustrations. Sometimes we can spend hours just waiting in traffic to travel a seemingly short distance. But what have engineers done over the years to help alleviate this problem? Well, one of the first innovations in the arena of traffic management was traffic signals and the science and engineering behind them is pretty fascinating.
Check out the free Komando.com App!
Get the latest tech updates and breaking news on the go, straight to your phone, with the Komando.com App, available in the Apple Store and Google Play Store.