1) The document proposes a helmet-based vehicle safety system to enforce traffic rules in Tamil Nadu and reduce deaths from head injuries in accidents by not allowing a bike to start unless the rider is wearing a helmet. 2) The system uses a PIR sensor and wireless communication between a transmitter on the rider's helmet and a receiver on the bike to determine if a helmet is being worn and will only allow the bike to start if so. 3) The goal of the system is to induce perfect rule following on roads and make biking safer by enforcing helmet usage.