Duri Kosambi Sponge Park: The application of Sponge City concept on green open space in reducing flood intensity in Jakarta

Flood in Jakarta has been a big issue nowadays. It soaked a thousand hundred hectares of resident area. There are many factors generating flood in that area, such as the dysfunctional of green open space as flood control. Furthermore, the large of provided green open space has not been complied the requirement, as only 9.9% of pre-requirement large of 30% of large area. Sponge City Concept is on of ideas in the form water controlling succeeded to be applied in China having 4 main concepts, which are water ecology, water safety, water environment, and water resources. Therefore, this article takes green open space Duri Kosambi as the specific research object by redesigning it into Duri Kosambi Sponge Park. This paper utilizes 3 (three) steps in redesigning green open space Duri Kosambi, pre-design, design, and post-design. The result of this paper Duri Kosambi Sponge Park design consisting of a plan-layout design, an aesthetic bioswale, a multifunction "O'Area", and an absorption poll visualized in 3D picture. Additionally, a plan and analysis of Duri Kosambi implementation are discussed in this paper. By stating this idea, it is expected to be able to give the positive effect for environment, economics, and social culture in the society.