scholarly journals Urban Rain Flood Ecosystem Design Planning and Feasibility Study for the Enrichment of Smart Cities

2021 ◽  
Vol 13 (9) ◽  
pp. 5205
Author(s):  
Yixin Zhou ◽  
Ashutosh Sharma ◽  
Mehedi Masud ◽  
Gurjot Singh Gaba ◽  
Gaurav Dhiman ◽  
...  
Keyword(s):  
Urban Environment ◽  
Smart Cities ◽  
Water Environment ◽  
Mitigation Measures ◽  
Urban Flooding ◽  
Lake Water Quality ◽  
Sponge City ◽  
Flooding Risk ◽  
City Construction ◽  
The City

The urban flooding situations have arisen in the modern scenario of urbanization due to climatic changes. This work contributes to designing a planned and feasible urban rain flood ecosystem to promote the construction of a sponge city. It has various advantages of improving the water environment, controlling urban waterlogging, reducing runoff pollution, improving river and lake water quality, recycling rainwater resources, replenishing groundwater, and many more. This paper combines the design methods and advantages of the design results formed in decades using traditional regulation and utilizing it for the present study. It reconstructs and integrates the traditional regulation and sponge city construction requirements, thereby providing a feasible urban rain-flood ecosystem in the industrial and smart city scenario. Finally, the regulation of new paddy areas in Yanjin city of China is considered for experimentation, and the design of the regulation is applied using this setup. The design results obtained from the test of sponge city construction have operability and can improve the urban environment and enhance the vitality of the city. The control plan’s design results integrating the sponge city idea can provide effective technical support and guarantee the overall urban environment. The work presented in this article can assess and plan the flood mitigation measures to monitor this type of situation leading to flooding risk reduction in smart cities.

scholarly journals Objectives and Indexes for Implementation of Sponge Cities—A Case Study of Changzhou City, China

Water ◽  
2018 ◽  
Vol 10 (5) ◽  
pp. 623 ◽  
Author(s):  
Zhengzhao Li ◽  
Mingjing Dong ◽  
Tony Wong ◽  
Jianbin Wang ◽  
Alagarasan Kumar ◽  
...  
Keyword(s):  
Water Quality ◽  
Flood Control ◽  
Water Security ◽  
Utilization Efficiency ◽  
Sustainable Urban Development ◽  
City Development ◽  
Lake Water Quality ◽  
Local Conditions ◽  
Sponge City ◽  
The City

This paper presents a framework of objectives and indexes for sponge cities implementation in China. The proposed objectives and indexes aims to reflect whether the city is in accord with the sponge city. Different cities have different objectives and indexes as each city has its own geologic and hydrogeological conditions. Therefore, the main problems (e.g., water security and flood risks) in the central urban area of Changzhou city, China were evaluated scientifically. According to the local conditions, four objectives and eleven indexes have been made as a standard to estimate the sponge city and set a goal for the city development to reach the goal of sustainable urban development. The strategy of process control was implemented to improve the standard of urban drainage and flood control facilities, regulate total runoff and reduce storm peak flow, and the ecological monitoring of the function of the rivers and lakes. The objectives of sponge cities include water security, water quality improvement, healthy water ecosystems, and water utilization efficiency. Urban flood prevention capacity, river and lake water quality compliance, and annual runoff control are the key objectives to encourage the use of non-conventional water resources.

scholarly journals Carbon Reduction Effects of Sponge City Construction: A Case Study of the City of Xiamen

2018 ◽  
Vol 152 ◽  
pp. 1145-1151 ◽  
Author(s):  
Weiwei Shao ◽  
Jiahong Liu ◽  
Zhiyong Yang ◽  
Zhaohui Yang ◽  
Yingdong Yu ◽  
...  
Keyword(s):  
Sponge City ◽  
Carbon Reduction ◽  
City Construction ◽  
The City

scholarly journals Study on the strategy of improving urban resilience from the perspective of sponge city construction

2020 ◽  
Author(s):  
Fujun Xia ◽  
Keyword(s):  
Research Methods ◽  
Quantitative Research ◽  
Model Simulation ◽  
Evaluation Model ◽  
Water Environment ◽  
Urban Resilience ◽  
Sponge City ◽  
Quantitative Research Methods ◽  
Main Research ◽  
City Construction

Urban resilience refers to the ability of a city to cope with disasters and recover its basic functions rapidly. Urban transportation, urban infrastructure, urban public policy-making and other aspects can improve the resilience of the city. At present, the urban water environment in China is still deteriorating, and the rainstorm and waterlogging disasters are still frequent. Therefore, the author chooses the sponge city construction to study the strategies to improve the urban resilience. The author chooses two aspects of urban storm and waterlogging disaster control and surface runoff, which are closely related to the improvement of urban resilience, as the main research objects, selects specific evaluation indexes and proposes calculation functions, and adopts multiple research methods such as typical case study, spatial model simulation quantitative analysis, statistical analysis and empirical research, through arc GIS analysis, PCSWMM modeling and grasshopper data-based research By means of design and horizontal comparative study of three practical cases, this paper makes a qualitative and quantitative study on the strategy of sponge city construction performance to improve the city's resilience, and the quantitative research is mainly used. There are two main achievements in this study: a set of quantitative research methods to improve the resilience of sponge city construction is preliminarily explored through the application of the evaluation model; some strategies to improve the resilience of sponge city construction are proposed.

scholarly journals AHP-Based Analysis Factors Influencing the Construction of a Smart City with Three-Dimensional Regional Color

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Xiaofei Yang ◽  
Lini Ma
Keyword(s):  
Influencing Factors ◽  
Smart City ◽  
Smart Cities ◽  
Three Dimensional ◽  
Simulation Models ◽  
Weight Value ◽  
Main Color ◽  
Multiple Data Sets ◽  
City Construction ◽  
The City

Urban color is becoming more and more important in the construction of smart cities. This research mainly discusses the influencing factors of AHP-based 3D regional color smart city construction. From the perspective of city managers, the factors selected in the article that affect the choice of urban color planning are economic development, urban culture, designer’s ideas, customs, and natural environment. We use GIS to comprehensively collect basic geographic information data of the city. We use CityEngine and GIS data to quickly create virtual cities. When constructing the AHP model, once the weight value of each factor in the color-influencing factors of the entire smart city is obtained, the total ranking of the levels needs to be checked once. After that, the study uses the MATLAB program platform to realize the parametric design of the main color of the city, including the control of the changes in the spatial structure of the main color of the city, followed by the control of the transition and coordination mode between the key elements of the city color. Explorer provides comprehensive and rich 3D digital city roaming browsing, query positioning, analysis, and other functions; supports the loading of multiple data sets from the Internet and local; and can dynamically load massive 3D city simulation models above and below ground. Finally, the design of the urban architectural color or improvement plan is further carried out, and the urban color main color design plan is finally implemented in the implementation of the urban architectural color, which effectively realizes the quantitative control of the urban color. When evaluating smart city color resources, the color weight value of public facilities is 0.147, which accounts for 14.7% of the total weight value. This research helps to enhance the regional and local cultural characteristics.

Sound and the City: Current Perspectives on Acoustic Geo-Sensing in Urban Environment

2019 ◽  
Vol 105 (5) ◽  
pp. 766-778 ◽  
Author(s):  
Florian B. Pokorny ◽  
Moritz Fišer ◽  
Franz Graf ◽  
Peter B. Marschik ◽  
Björn W. Schuller
Keyword(s):  
Urban Environment ◽  
Real World ◽  
Cell Phone ◽  
Spatial Information ◽  
Smart Cities ◽  
Sequential Approach ◽  
Real World Applications ◽  
Audio Data ◽  
A Cell ◽  
The City

Acoustic geo-sensing deals with the derivation of spatial information from audio data. Motivated by the rising field of sensing information in (smart) cities, we present current perspectives and a methodological update on the acoustic-based solution of recognition problems in a complex urban real-world scenario. In particular, we examine a static and a sequential approach for the automatic recognition of a cyclist's route between fixed endpoints, the route direction, and the route progress, solely based on the audio data recorded with a cell-phone attached to the cyclist. To this end, we introduce the freely available 'Graz Cell-phone Cycle Corpus extended' (GC3+) that consists of more than 25 h of GPS-annotated audio material recorded in the southern urban area of the city of Graz, Austria. Promising recognition results confirm basic feasibility of acoustic geo-sensing in an urban environment. The approach's theoretical potential of being generalised to support the solution of position tracking problems on a multi-dimensional urban grid gives reason for the implementation of acoustic geo-sensing methodology in a number of real-world applications.

scholarly journals Research on City Center Area System Identification and Environmental Renewal Strategy under the Background of Smart Cities

2018 ◽  
Vol 53 ◽  
pp. 04047
Author(s):  
Bing Wang ◽  
Cai Dai
Keyword(s):  
Smart Cities ◽  
Central Area ◽  
Morphological Characteristics ◽  
Urban Center ◽  
City Center ◽  
City Construction ◽  
The Times ◽  
The City ◽  
Center Area ◽  
Urban Environmental Management

In this paper, combining the development of the times and the construction of smart cities, the various identification elements of the city center area system were collated and extracted while combing the morphological characteristics of the central area of the city. Moreover, after combining these identification elements, the problems to be solved in the construction environment of the modern urban center area were analyzed. Through the analysis of the content of smart city construction and integration with the organic renewal of the urban center area, a strategic discussion has been proposed, aiming at maximizing the rejuvenation of the environmental vitality of the urban center area while adapting to modern urban environmental management.

scholarly journals Smart city interfaces

2021 ◽  
Vol 128 ◽  
pp. 04021
Author(s):  
Konstantin Semyachkov
Keyword(s):  
Urban Environment ◽  
Smart City ◽  
Smart Cities ◽  
User Interaction ◽  
Digital Systems ◽  
Basic Principles ◽  
Digital Ecosystem ◽  
Modern Cities ◽  
Wide Range ◽  
The City

The work clarifies the concept of a smart city interface as a toolkit for the interaction of digital systems and a wide range of users within the framework of the digitalization of the urban environment. The paper shows that the success of the formation and development of smart cities is associated not only with the introduction of digital technologies in various aspects of the urban environment, but also with the willingness of the population to use these innovations, as well as the toolkit for user interaction with digital systems, i.e. smart city interfaces, their usability and efficiency. The work systematizes the basic principles of the development of interfaces of smart cities, it is shown that the basic principles of creating interfaces are also typical for other digital systems, for example, used in the digitalization of enterprises or individual areas of economic activity. On the other hand, the complexity and multidimensionality of the digital ecosystem of the city requires the development of special principles for the formation of effective tools for interactions within the digital space of the city. The novelty of the research lies in the development of the theoretical foundations of the functioning of modern cities in the context of the formation of a digital society.

Urban Flooding and Measures

2007 ◽  
Vol 2 (3) ◽  
pp. 143-152 ◽  
Author(s):  
Keiichi Toda ◽  
Keyword(s):  
Urban Environment ◽  
River Basins ◽  
Urban Flooding ◽  
Urban Floods ◽  
Urban Flood ◽  
Flood Model ◽  
Flood Disasters ◽  
Simulation Results ◽  
The City ◽  
Inundation Model

Urban flood disasters occur often worldwide, and Japan is no exception, as indicated by the 1999 Fukuoka flood. Urban floods result from changes in the urban environment influenced by the specific features of the city involved. We review recent urban floods, their causes and characteristics, together with the results of recent studies. Focusing on two mathematical models -- the integrated urban flood model of urban river basins and the underground inundation model -- we discuss their simulation results. To demonstrate the dangers of underground inundations, we introduce evacuation experiments conducted using full-scale staircase and door models. Based on these studies, we propose comprehensive measures against urban floods, including underground inundations.

scholarly journals Comprehensive Performance Evaluation System Based on Environmental and Economic Benefits for Optimal Allocation of LID Facilities

Water ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 341 ◽  
Author(s):  
Yiran Bai ◽  
Yuhong Li ◽  
Ruoyu Zhang ◽  
Na Zhao ◽  
Xiaofan Zeng
Keyword(s):  
Evaluation System ◽  
Green Roof ◽  
The United States ◽  
Economic Benefits ◽  
Urban Flooding ◽  
Rain Garden ◽  
Sponge City ◽  
Permeable Pavement ◽  
Comprehensive Performance ◽  
City Construction

In recent years, urban flooding occurred frequently because of extreme rainstorms. Sponge city construction can effectively mitigate urban flooding and improve urban rainwater utilization. Low-impact development (LID) is regarded as a sustainable solution for urban stormwater management. In this project, a comprehensive evaluation system was developed based on environmental and economic benefits using the analytical hierarchy process (AHP) and the Storm Water Management Model (SWMM) of the United States (US) Environmental Protection Agency (EPA). The performance of four LID scenarios with the same locations but different sizes of green roof, permeable pavement, concave greenbelt, and rain garden were analyzed in the Sucheng district of Jiangsu province in China. Results illustrate that the green roof performed best in reducing runoff, while the rain garden performed worst. The LID combination scenario (1) that contained more green roof, permeable pavement, and concave greenbelt facilities, but fewer rain gardens had the better comprehensive performance on the basis of environmental and economic benefits. The combined scenario (2) (LID proportion of maximum construction area was 40%) could also be an alternative. This study provides a guide to optimize LID layouts for sponge city construction, which can also provide optimal selection for other sponge city constructions.

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