Development of FAST (Flood Alert System by Trigger): A Smart IoT-Based Approach to Flood Detection and Road Safety

Abstract

One of the biggest risks to public safety is flooded roads they put people at risk, cause accidents, and slow down emergency crews when every second counts This paper introduces FAST (Flood Alert System by Trigger), an intelligent IoT-based solution for real-time flood detection and automated road safety management. The system continuously tracks water levels through ultrasonic sensor, and it helps to stop cars from driving into danger zones and an Arduino Uno microcontroller processes the obtained data and manages the operational activities. An ESP32 module sends out instant alerts. The system flashlights, sounded alarms, showed live information on an LCD as the water passed a given line and lowered a servo-controlled barrier to halt the traffic. This renders the inclusion of on-board features like buzzers and LEDs useful in communicating with drivers without necessarily involving human resources. High detection accuracy, response time of 2-3s and low power consumption were found in protest testing. The proposed system, FAST, clearly showcases the possibilities of the IoT and embedded systems in disaster prevention and improving road safety for the future.