Research On The Governance Of "Flooded Street" Phenomenon In Mega Cities

With the frequent occurrence of extreme weather and the expansion of urban construction scale,the phenomenon of "flooded Street" caused by heavy rainstorm is serious,and major accidents such as car toppling and casualties often occur.It seems that the phenomenon of "flooding Street" has become a common state after heavy rain weather in our mega cities.It has a great impact on people’s production and life,and even threatens people’s life safety,seriously affecting social harmony,stability and development.How to control water scientifically and effectively has become the people’s livelihood work that governments at all levels pay more and more attention to.This paper focuses on the flooding street and flooding accidents in Guangzhou City in recent five years,especially on the history and current situation of water system in Guangdong city;Water system planning;Taking the construction and maintenance of rainwater and sewage facilities as the main research object,this paper mainly uses the methods of investigation and analysis,literature research,case study,etc.to explore the various factors of "waterlogging Street",such as natural factors,human factors,scientific development factors,etc.,and finds out various problems of government public management,such as "paying more attention to the ground than the underground"“ Heavy flood,light flooding Street "“ Second,we should pay more attention to construction than management;Lack of long-term planning;The management mechanism is not smooth;The maintenance of drainage facilities is extremely backward.Through analysis and research,the paper puts forward the direction and goal of water control work from the "current","short-term" and "long-term" three periods.From the perspective of government management,it puts forward the ideas and Countermeasures to solve the flooding Street problem from the aspects of ideology,rules and regulations,planning and control,standard system,innovative methods,management and maintenance,early warning and emergency rescue mechanism,In order to make a scientific orientation for the function of water control work in the future,change the traditional way that the government mainly takes the maintenance and maintenance of facilities,construction and transformation as the main content in water control work,put forward the new role and orientation of the government in water control work: coordinate the relationship between land use and "waterlogged Street",pay attention to the role of urban planning and design in solving "waterlogged Street",We will guide the construction.The drainage system of deep tunnel in Haoyong watershed is combined with the existing shallow drainage system to solve the problems of water environment and Flood Street treatment.Referring to the advanced new ideas and methods of water control abroad,such as the experience from Paris and Tokyo,this paper puts forward "sustainable drainage system" and green infrastructure and other rainwater resource utilization systems from the perspective of social organization and public participation.