This study developed and evaluated a GPS - Based Philippines, DRRM is institutionalized through Republic Act No. Emergency Response System for the Municipal Disaster Risk 10121, which mandates a comprehensive framework for disaster Reduction and Management Office (MDRRMO) of Lambunao , preparedness, prevention, mitigation, response, and recovery [1]. Iloilo, Philippines to address challenges in delayed emergency The law decentralizes disaster governance and emphasizes the reporting, absence of real - time location tracking, and inefficient coordination between residents and responders in the municipality . crit ical role of Local Government Units (LGUs) in ensuring The system comprises a mobile application for residents and coordinated and community - based emergency response systems. emergency personnel, and a web - based administrative dashboard Despite this strong legal foundation, operational inefficiencies for MDRRMO authorities. The reside nt application enables users to remain prevalent at the municipal level, particularly in rural and submit emergency requests with incident details, images, and semi - urba n communities. automatically generated GPS location data. The responder application allows emergency teams to receive real - time alerts, Emergency response operations in many municipalities navigate to incident sites using GPS, and update response statuses. continue to rely on conventional communication channels such as The administrative dashboard provides real - time monitoring of on line calls, short message services (SMS), and two - way radios. incidents, responder locations, and response progress to facilitate effective coordination and decision - making. A descriptive - These manual and fragmented systems often result in delayed developmental research design was employed , focusing on the reporting, inaccurate location descriptions, dispatch errors, and system’s design, development, and evaluation. The system was poor inter - agency coordination. Studies indicate that emergency assessed by thirty - three (33) respondents, including five (5) resp onse delays are frequently associated with incorrect or MDRRMO staff and responders, eight (8) residents, and twenty (20) incomplete address information, traffic conditions, route IT experts, using an adapted evaluation instrumen t based on the unfamiliarity, and limi ted situational awareness [2], [3]. The ISO/IEC 25010:2011 Software Quality Standards. The application absence of an integrated and real - time digital tracking system was developed using Flutter for the mobile platform, PHP and further compounds these challenges, reducing the overall MySQL for backend services, and HTML, CSS, JavaScript, and effectiveness of disaster response operations. Bootstrap for the web interface, following an Agile softwa re development methodology to enable iterative enhancements based on stakeholder feedback. Evaluation results yielded an overall mean The Global Positioning System (GPS), developed and rating of 4.77, interpreted as Excellent, across the criteria of maintained by the United States Department of Defense, provides Functional Suitability, Performance Efficiency, Usability , precise positioning, navigation, and timing services worldwide Reliability, Security, Maintainability, and Portability. The findings [4]. GPS technology has been widely adopted across sectors such indicate that the proposed system significantly improved the as transportat ion, logistics, agriculture, and geospatial monitoring accuracy of emergency reporting, reduced response time, and due to its accuracy and reliability. In emergency management, enhanced coordination among responders. The study demonstrates GPS integration enhances operational efficiency by enabling real - the potential of GPS - enabled technologies to strengthen local time incident localization, dynamic route optimization, and live emergency response operations and improve public safety in the Municipality of Lambunao. tracking of emergency units [5]. However, despite the widespread availability of GPS - enabled smartphones and digital mapping services, its systematic integration into localized DRRM systems