Interdisciplinary integration of land use and drainage planning for urban adaptation under the climate change scenario

Abstract

The challenge posed by urbanization often revolves around effectively integrating land use and comprehensive drainage planning. The empirical results of urban layout on stormwater management are summarized into two major categories: (1) decrease of runoff volume and (2) decrease of peak flows. Interdisciplinary incorporation of urban design and hydraulic engineering should be employed for reducing upstream runoff volumes and a regional downstream detention system to mitigate peak flow releases. This study proposes a framework that combines the distribution of flow loading and the control of flow releases to formulate the adaptation strategy by synthesizing land use and comprehensive drainage planning. The study leverages environmental and land use data to investigate Dapu township, Taiwan. The presented paper designs a detention and low-impact development (LID) method based on relative land use layout. It identifies the relationships between land use and master drainage planning (MDP) in watershed areas. It contributes to an integrated framework for the urban planners’ flood mitigation adaptation strategy. Most importantly, it provides insights into MDP practices under slight, medium, and even climate change scenarios.