Aaron Don M. Africa et al., International Journal of Emerging Trends in Engineering Research, 8(7), July 2020, 3049 - 3053 3049 ABSTRACT Pedestrian safety should always be one of the priorities when implementing projects aimed at traffic. The vulnerability of pedestrians increases when they use the crossing roads, and it increases further during the nighttime since drivers have lower visibility of pedestrians on the road. This paper aims to reduce accidents relating to cars and pedestrians. Through the use of Arduino as microcontrollers and ultrasonic sensors, a smart pedestrian-controlled traffic light can be constructed to aid pedestrians crossing while causing a less negative impact on the traffic of the location. A control system will be utilized to analyze traffic and operate the traffic light depending on the data received by the sensors. The project is easy to produce and can be altered depending on the conditions of the location. The operation of the project aims to be useful for both pedestrians and drivers. However, the project cannot be applied to all traffic lights and must be strategically placed on specific situations to maximize the efficiency of the application of the project. Key words: Pedestrian, traffic light, control systems, Arduino, ultrasonic sensor. 1. INTRODUCTION The purpose of the study is to implement a low-cost pedestrian controlled traffic light using Arduino and PIR motion sensors to analyze traffic. The system will decide on a time interval for changing the lights to prepare upcoming cars for pedestrians that will try to safely cross the road. The system was created to be applied during the nighttime as fewer people are roaming around the streets and the system will prevent further accidents that may happen from no supervision from police officers usually supervising the intersections. The implementation of the system is to be done on streets with traffic lights for pedestrian crossings. This is usually seen in school districts and residential areas. A real and practical application of the system can be implemented on the roads in front of DLSU, which is a school district and a residential area for some students enrolled in the college. As the study being conducted is only low cost and focuses on a specific target area, the system can be easily implemented and verified if it would be successful or not. Other countries have started implementing similar systems to their intersections and researchers are thinking of more ways to integrate the system so that not only are the roads safer, but so that energy conservation is achieved and emergency vehicles are no longer disrupted by red traffic lights when the vehicle needs to pass through. A better traffic management system also enables more people to save time going from place to place. This benefits society by enabling people to be able to get to work on time and still have time for their families when they decide to go home. If a road accident occurs, a delay in the flow of traffic is developed and someone may die which would lead to a lot of negative impacts. 2. BACKGROUND OF THE STUDY The concept of a smart traffic light is an idea that is being expounded on by various other researchers but the difference with this study and the others is that this study is implemented on a smaller scale. Knowledge of Arduino programming and sensors are required to understand how to implement a system like this. Basic understanding of the Arduino system is essential for the system to be able to operate simultaneously from input to output with the data that is varying. Although the system is fairly easy to recreate, one must have the proper understanding to ensure that the system will work as it is designed. The system works on the concept of interpreting real-time data being obtained by the sensors and a resulting time for the traffic lights will be implemented based on the result. This is essentially a feedback system wherein data is continuously returned to the circuit and varying codes are used depending on the situation analyzed by the sensors present on the road. The system can be implemented on a larger scale as done by other studies, but this study will only focus on small roads as to see if there will be any difficulties encountered and so that improvements can be continuously made throughout the initial phase of the system. The basic understanding of how different sensors operate is a concept that the researcher must possess for this study as varying sensors would operate differently from one another. The main sensor used for the study is a PIR motion sensor, PIR stands for passive infrared. The PIR motion sensor is low power and low budget component that detects motion by Design and Development of a Pedestrian Controlled Stop Light Aaron Don M. Africa, Rica Rizabel M. Tagabuhin, Jan Jayson Tirados Department of Electronics and Communications Engineering De La Salle University, Manila 2401 Taft Ave., Malate, Manila 1004, Philippines, aaron.africa@dlsu.edu.ph ISSN 2347 - 3983 Volume 8. No. 7, July 2020 International Journal of Emerging Trends in Engineering Research Available Online at http://www.warse.org/IJETER/static/pdf/file/ijeter28872020.pdf https://doi.org/10.30534/ijeter/2020/28872020