5 th International Seminar of Research Month 2020 Volume 2021 http://dx.doi.org/10.11594/nstp.2021.0909 How to cite: Mandyaetha, E. P., & Faroqi, A. (2021). Analysis and design of a crowdsourcing-based Flooded Road Reporting System Indonesia (FROSTID) application. 5 th International Seminar of Research Month 2020. NST Proceedings. pages 53-63. doi: 10.11594/ nstp.2021.0909 Conference Paper Analysis and Design of a Crowdsourcing-Based Flooded Road Reporting Sys- tem Indonesia (FROSTID) Application Eka Prakarsa Mandyartha* 1 , Asif Faroqi 2 1 Informatics Department, Faculty of Computer Science, Universitas Pembangunan Nasional “Veteran” Jawa Timur, Indonesia 2 Information System Department, Faculty of Computer Science, Universitas Pembangunan Nasional “Veteran” Jawa Timur, Indonesia *Corresponding author: ABSTRACT The problem of flooded road infrastructure mainly occurs in urban areas, due to low soil bearing capacity, high rainfall intensity, and failure of rainwater flow to the drainage system. Flooded roads, when traversed by motorized ve- hicles, will be very detrimental to the rider. Flood water can damage engines, transmissions, electrical components, and motor vehicle electronic computer systems. Water is also very dangerous to car safety devices, such as airbags and braking systems that use ABS (Antilock Braking System). Also, there may be health problems involving fungi and bacteria, due to damp vehicles, espe- cially on cars. Other problems related to water may not be immediately ap- parent, such as rust and corrosion, which will develop over time. The flooded road reporting system is an early warning system that provides information to road users so they can take anticipatory steps. This research proposes a crowdsourcing-based flood road reporting system, called Frostid (Flooded Road Reporting System Indonesia), that involves local road users in collect- ing flood information. Frostid application users can not only access geospatial information for flooded roads but also can collect location data using the Global Positioning System (GPS) and upload the location points of flooded roads using their smartphones. The Frostid application uses a navigation map to describe the location of flooded roads. Flood information stored in the Frostid application is built entirely by local road users. The Frostid applica- tion is built on a mobile Android platform. Keywords: Flood, reporting system, crowdsourcing, road, local road user E-mail: eka_prakarsa.fik@upnja- tim.ac.id Introduction Flood is the main problem experienced during the rainy season every year in Indonesia, especially in big cities (Ali et al., 2019). Flooding occurs when the river level rises due to high rainfall, reservoirs that are unable to accommodate the volume of rainwater or a poor drainage system. The water level that exceeds the riverbank, can cause the area around the river to be flooded. Floods can occur due to low soil bearing capacity. It will increase in groundwater, potentially causing large-scale flooding (See, 2019). Floods can also be caused by hurricanes or typhoons, or rising sea levels due to climate change or from tsunami waves. Besides, flooding can be caused by rainwater flows failing to flow into the drainage system or ditch due to the full capacity of the gutters, previously submerged roads, and road structures that prevent water from flowing into the drainage system. The problem of flooded road infrastructure mainly occurs in urban areas, for example, Jakarta and Surabaya, due to the high number of impermeable surfaces (the land cannot absorb water), thus preventing water infiltration into the ground. One type of infrastructure network is roads. Road infrastructure is built to support the welfare of the people, especially in an economy, which is highly dependent on the mobility of people and goods (Pregnolato et al., 2017). Changes in extreme weather, climate, frequency, and severity of natural disasters