International Journal of Science, Engineering and TechnologyAuthors: G.Sai Sreekanth, K.Hem Kumar, K.Subramanyam, L.Sharat Chandra, C.Darshan
Abstract: Traffic congestion is a major challenge in urban areas, leading to delays, fuel wastage, and increased pollution. This paper presents a Real-Time Traffic Control System using IoT nodes based on traffic density information to optimize signal timing and improve traffic flow. The system utilizes ultrasonic sensors (HC-SR04) to measure real-time traffic density and dynamically adjust traffic signals accordingly. An Arduino Mega acts as the central processing unit, while a NodeMCU is used to integrate the system with Adafruit IoT for remote monitoring and control. Additionally, an RFID-based vehicle authentication system using RC522 RFID cards and an RFID reader is implemented to prioritize emergency or authorized vehicles. The system also includes an LCD display to show real-time traffic information and LED indicators (red, yellow, and green) the proposed system enhances traffic management, reduces congestion, and improves overall urban mobility.
