Combination and placement of sustainable drainage system devices based on zero-one integer programming and schemes sampling

The combination and placement of sustainable drainage systems (SuDS) devices is important for system design, but differing site characteristics and device properties can make this a challenging task. Opinion-based and optimization-based approaches have the disadvantages of subjectivity and excessive computational burden respectively. This paper presents a new framework for SuDS device combination and placement in system design. It integrates zero-one integer programming, random sampling, scheme filtering and cost-effectiveness analysis. The effectiveness of the framework is tested with a SuDS device placement design case in Chizhou city, Anhui province, China. The proposed framework will help to objectively choose the best SuDS device combination and placement scheme for cost-effective implementation.