Development of a web-based platform for rainwater retention facility design

Abstract

This study develops a web-based operational platform to streamline the integration of GIS technologies, hydrological analyses, and regulation inspections in the design process of rainwater retention facilities. The system incorporates a comprehensive design procedure, which entails: (1) selecting the type and size of the retention facility based on predefined options, (2) conducting hydrological analyses specific to the development site, and (3) verifying the design's compliance with relevant regulations. Users can visualize flow hydrographs before and after development, estimate the increase in runoff volume resulting from development, and assess the reduction in peak outflow achieved by the retention facility. The system can also validate the adequacy of the retention facility design in alignment with regional flood control objectives. It offers a user-friendly geographical interface for designing retention facilities and drainageways at development sites. Furthermore, design information displayed on the platform can be conveniently shared with regulatory authorities through a web link.