IOT Based Real Time Road Hazard Detection and Alert System Using Smart Streetlight and Smart Road Studs

Road safety is a major problem in modern transportation systems. Many accidents happen because drivers do not get information about road problems in time. These problems include potholes, uneven roads, sudden speed breakers, accident-prone areas, and damaged road surfaces. Traditional methods like road signs and manual inspection are not enough because they do not change based on real road conditions. Also, road inspections take time and cannot cover all areas frequently. This paper presents an IoT-based system that can detect road hazards in real time and warn drivers quickly. The system uses sensors placed in vehicles to collect data such as vibration and location using accelerometers, ultrasonic sensor and GSM Modem. When a vehicle passes over a bad road surface, the sensor data changes. This data is sent to a cloud server through mobile networks, where it is analysed to confirm if there is a real road problem. Once a hazard is confirmed, the system sends information to nearby smart streetlights or roadside units. These units then activate smart road studs using wireless communication. The road studs light up and give a clear visual warning to drivers, especially at night or in bad weather. This helps drivers slow down and avoid accidents. The system was tested in different road conditions. The results show that it can detect road problems quickly and accurately. The system is reliable and can work well in busy city roads. This smart road safety system is useful for smart cities. It reduces the need for manual road inspection and improves safety using modern technology. By combining vehicles, cloud computing, and smart roadside devices, this system makes roads safer and helps save lives.