Solar-Powered Smart Traffic Control System for Efficient Roundabout Management

Abstract

Traditional roundabouts have become increasingly inefficient due to population growth and rising vehicle numbers, which lead to significant traffic congestion during peak times. Despite various attempts to address the issue, such as implementing traffic lights and barriers, congestion often worsens under these solutions. To alleviate this problem, a smart traffic light control system has been designed specifically for roundabouts. This system relies on an Arduino Mega to manage traffic flow at the roundabout, powered by a standalone DC photovoltaic solar system. IR motion sensors detect congestion, while LCD displays guide drivers by showing available traffic directions. LED traffic lights regulate access to the roundabout for passing vehicles. Additionally, a GSM module sends traffic flow updates to traffic police centers, ensuring real-time monitoring. Each subsystem was selected based on KT (Kepner-Tregoe) analysis and designed according to specific requirements, constraints, and relevant engineering standards. Computer simulations were conducted using MATLAB, Proteus, Arduino IDE, and SolidWorks software. The integrated code produces the desired system functionality. This design reduces travel time, cost, and environmental pollution, enhancing the driving experience within roundabouts. Finally, the project is implemented, tested, and packaged as a final product.