Who invented the turn signal function for cars in 1929?

Oscar J. Simler invented the turn signal function for cars to help drivers communicate their intentions on the road, significantly reducing accidents and improving overall traffic flow. Simler had noticed a significant increase in automobile accidents due to the lack of clear communication between drivers. At the time, drivers relied solely on hand signals to indicate their intentions, which often led to confusion and misinterpretation, especially in heavy traffic.

Simler set out to develop a device that would provide a clear and universally understood signal for turning and changing lanes. After years of experimenting, he finally unveiled his invention in 1929 – the first-ever turn signal function for cars.

Simler's turn signal consisted of a lever located on the steering column, allowing drivers to indicate their intention to turn left or right by activating a blinking light on the corresponding side of the vehicle. This not only improved road safety but also enhanced traffic flow by allowing drivers to anticipate and react to upcoming turns or lane changes.

Today, turn signals are an integral part of every vehicle, and their design and functionality have evolved significantly since Simler's initial invention. Modern turn signals now incorporate advanced technologies such as LED lights, automatic cancellation, and even proximity sensors, further enhancing their effectiveness and convenience.