It is very difficult for ambulances to pass through the traffic jams in Hyderabad, no matter what the ambulances may be carrying. A new system is now being introduced where traffic signal systems can automatically turn green on the side where it senses an ambulance traversing through, to help emergency situations.
A private college in Chennai is developing an Internet of Things (IoT) based traffic signal control system that automatically turns green when it senses an ambulance. This control system is also expected to lower the vehicular waiting time for ambulances in traffic. These systems will sense an ambulance, by listening to the sound of an ambulance siren.
The system can also detect the fading away of the ambulance siren, and after the siren fades away enough, the signal system can switch back to normal mode. This system is simple and affordable, which is the best part of it. Good quality sensors are the only requirement for this, which costs Rs. 400-500 each. This way, a lot of human lives can be saved.
The efficiency of this system has also been tested, over other methods of traffic clearance such as image processing, android, GPS, and found this IoT-based system to be more efficient than any other system. Virtual demonstrations of this method have taken place, but physical demonstrations have been hampered due to Coronavirus lockdowns. The research has been published in the International Journal of Engineering and Advanced Technology in February 2020.