后试点时代的已建区海绵城市建设方案编制

Thoughts on the Construction Plan of Sponge City in the Built-up Area in the Post Pilot Era

随着海绵城市试点的完成验收,我国将迎来系统化全域推进海绵城市建设的后试点时代。未来大量海绵城市建设工作将在已建区完成,其方案编制需要将以问题为导向的建设与改造作为主要指导思想,针对问题复杂性、民生需求多样性以及周期长和投资紧等因素带来的不确定性,仔细识别问题与需求,梳理并分析必要性与可行性,提升方案系统性和操作性,提高绿色基础设施的复合功能设计。具体方案中应分情形确定建设条件、分系统构建思路、分片区组织项目、分类型出具边界条件引导建设,根据项目组织方式和贡献情况区分骨干项目、重点项目与一般支撑项目,制定建设时序,保障可达性与经济性。同时提出了通过中尺度优化方式,提升方案灵活应对建设条件与计划的不确定性,提高决策效率、降低决策成本。

The post pilot era of comprehensively promoting the construction of sponge city has come into reality with the completion and acceptance of the sponge city pilot project.In the future,plenty of sponge city construction work will be completed in the built-up area,and its plan preparation needs to take the problem-oriented construction and transformation as the main guiding ideology.To solve the complexity of the problem,the diversity of people’s livelihood demand,the uncertainty caused by the long operation cycle,and the tight investment,etc.,it is necessary to carefully identify the problem and demand,sort out and analyze the necessity and feasibility,improve the systematicness and operability of the plan,and improve the composite function of green infrasturcture.In the specific scheme,the construction conditions,sub-system construction ideas,sub-regional organization projects and classified issuance boundary conditions shall be determined according to the situation.The backbone projects,key projects and general supporting projects shall be distinguished according to the project organization mode and contribution,and the construction sequence shall be formulated to ensure the accessibility and economy.In addition,this paper puts forward the way of mesoscale optimization to improve the flexibility of the scheme to deal with the uncertainty of construction conditions and plans,improve the efficiency of decision-making and reduce the cost of decision-making.