scholarly journals Efficiency of underground retention systems and reduction of urban floods in Tepic, Mexico

2020 ◽  
pp. 63-72
Author(s):  
German Antonio Ramírez-Quele ◽  
Mario Guadalupe González-Pérez ◽  
Fernando Flores-Vilchez ◽  
Yefer Asprilla-Lara ◽  
Jesús Rodríguez-Rodríguez
Keyword(s):  
Systems Approach ◽  
Storm Water ◽  
Urban Drainage ◽  
Local Networks ◽  
Urban Floods ◽  
On Site Inspection ◽  
Underground System ◽  
The City ◽  
Urban Storm ◽  
Land Runoff

Many cities in Mexico experience recurrent floods, caused by changes in land use, the modification of surface and land runoff, the artificialization of areas initially intended for infiltration and recharge of groundwater and, in general, the insufficiency and deficiency of the local networks of urban drainage, incapable to evacuate the annual surpluses of precipitation. In this sense, the objective of this study evaluates the efficiency of an underground system of retention of rainwater in one of the main avenues of the city of Tepic, Mexico: Avenida Tecnologico. To this end, an analysis of the thematic contents and on-site inspection assisted by geographic information systems is carried out. Based on the systems approach and the logic of a qualitative model, it is concluded that the capacity of urban storm water networks for water evacuation is exceeded dimensionally. Also, it can be observed that retention systems can mitigate the urban entropy generated by the floods.

scholarly journals Nature Based Solutions for Sustainable Urban Storm Water Management in Global South: A Short Review

2022 ◽  
Author(s):  
Fahad Ahmed ◽  
Shashwat Sharma ◽  
Loc Ho ◽  
Ming Chow
Keyword(s):  
Water Management ◽  
Low Impact Development ◽  
Global South ◽  
Storm Water ◽  
Urban Drainage ◽  
Urban Water ◽  
Urban Water Management ◽  
Rapid Urbanization ◽  
Storm Water Management ◽  
Urban Storm

Rapid urbanization in the Global South exacerbates urban water management challenges such as urban flooding and water pollution, rendering many areas water-insecure. Our reliance on grey infrastructures to combat these water management challenges is not sustainable in the long run, due to which a better alternative must be sought. Nature-based Solution (NBS) promote ecosystem services and enhance climate resiliency along with flood control and improvement of water quality by utilizing natural elements including green spaces and water bodies within the urban environment. In the past few decades, NBS have been adapted for urban drainage in Global North and evolved by means of various terms based on geographic location, practices and applications. Some of these well-known terms include Low Impact Development (LIDs), Sustainable Urban Drainage Systems (SUDS), Water Sensitive Urban Design (WSUD) and Best Management Practices (BMPs). The transition towards a resilient and sustainable environment has been made possible through the application of NBS. Recently, countries in the Global South such as Singapore, Malaysia, Vietnam, and Thailand are trying to alter urban storm water management strategies through conversion of grey infrastructure to green infrastructure by employing various NBS techniques. The findings of this study show how NBS has influenced the Global South’s urban water management.

scholarly journals Computational modelling of urban drainage network using LID alternatives in a sub-basin in the city of Maringa, Parana, Brazil

2020 ◽  
Vol 24 ◽  
pp. e3
Author(s):  
Murilo Camilo ◽  
Roberto Takeshi Nakahashi ◽  
Bruno Henrique Toná Juliani ◽  
Juliane Vier Vieira ◽  
Cristhiane Michiko Passos Okawa
Keyword(s):  
Low Impact Development ◽  
Computational Modelling ◽  
Urban Drainage ◽  
Drainage Network ◽  
Intense Rainfall ◽  
Urban Floods ◽  
Efficient System ◽  
Computational Program ◽  
Urbanization Development ◽  
The City

With urbanization development, inundations and urban floods become more frequent. In the city of Maringa, Parana, this type of event is often observed in some specific dense urban locations, resulted by intense rainfall. In this context, the objective of this paper is to perform a computational modelling in the urban drainage network, most specifically in the sub-basin defined by the intersection of avenues Guaiapo and Palmares, in the city of Maringa, Parana, considering the current situation and with the application of Low Impact Development (LID) compensatory techniques. In this regard, the computational program SewerGEMS® was used to develop the scenarios simulations. The results shown that the actual network is undersized (Scenario 01), and it is proposed the adoption of LID compensatory measures (Scenarios 02, 03 and 04). The computational modelling in the elaboration of the scenarios was effective and it may support the municipal urban management with the implementation of an adequate and efficient system of stormwater management.

Exploring Potentials for Culinary Tourism through a Food Festival: The Case of Thessaloniki Food Festival

2016 ◽  
Vol 4 (2) ◽  
pp. 110-125
Author(s):  
George Chatzinakos
Keyword(s):  
Strategic Planning ◽  
Planning Tool ◽  
Urban Experience ◽  
Local Networks ◽  
Culinary Tourism ◽  
Complex Process ◽  
New Destination ◽  
Structural Networks ◽  
The City ◽  
Culinary Culture

This paper seeks to conceptualize the way Thessaloniki is promoting culinary tourism, whilst supporting and building upon local networks; engaging and co-creating an urban experience with its citizens and visitors. The aim of the paper is to suggest a potential framework that can be used as a strategic planning tool for the promotion of culinary tourism in Thessaloniki. In this direction, a food festival is being investigated. The last, is conceived by the organizers as the foundation of the idea of culinary tourism in the city. However, the findings indicate that there is a lack of active participation by the locals and not enough communication among various assets that are associated with the culinary identity of the city. In general, Thessaloniki seems to embody the ongoing struggle of a new destination, which is dealing with the complex process of branding and marketing without having the proper tools and the vital required collaboration between its structural networks. Accordingly, the research provides a lens through which the culinary culture of Thessaloniki can be used as a strategic pillar for stimulating a sustainable way of “consuming” and promoting the city’s identity; enhancing Thessaloniki’s appeal as a culinary destination.

Evaluating a Sewershed Urban Storm Water Model for Variability in Parameter Sensitivity and Resolution Effects

2020 ◽  
Author(s):  
Zhaokai Dong ◽  
Daniel Bain ◽  
Murat Akcakaya ◽  
Carla Ng
Keyword(s):  
Pipe Flow ◽  
Peak Flow ◽  
Model Performance ◽  
Parameter Sensitivity ◽  
Geometric Parameters ◽  
Storm Water ◽  
Parameter Estimates ◽  
Kappa Statistics ◽  
Thiessen Polygon ◽  
Urban Storm

A high-quality parameter set is essential for reliable stormwater models. Model performance can be improved by optimizing initial parameter estimates. Parameter sensitivity analysis is a robust way to distinguish the influence of parameters on model output and efficiently target the most important parameters to modify. This study evaluates efficient construction of a sewershed model using relatively low-resolution (e.g., 30 meter DEM) data and explores model sensitivity to parameters and regional characteristics using the EPA’s Storm Water Management Model (SWMM). A SWMM model was developed for a sewershed in the City of Pittsburgh, where stormwater management is a critical concern. We assumed uniform or log-normal distributions for parameters and used Monte Carlo simulations to explore and rank the influence of parameters on predicted surface runoff, peak flow, maximum pipe flow and model performance, as measured using the Nash–Sutcliffe efficiency metric. By using the Thiessen polygon approach for sub-catchment delineations, we substantially simplified the parameterization of the areas and hydraulic parameters. Despite this simplification, our approach provided good agreement with monitored pipe flow (Nash–Sutcliffe efficiency: 0.41 – 0.85). Total runoff and peak flow were very sensitive to the model discretization. The size of the polygons (modeled subcatchment areas) and imperviousness had the most influence on both outputs. The imperviousness, infiltration and Manning’s roughness (in the pervious area) contributed strongly to the Nash-Sutcliffe efficiency (70%), as did pipe geometric parameters (92%). Parameter rank sets were compared by using kappa statistics between any two model elements to identify generalities. Within our relatively large (9.7 km^2) sewershed, optimizing parameters for the highly impervious (>50%) areas and larger pipes lower in the network contributed most to improving Nash–Sutcliffe efficiency. The geometric parameters influence the water quantity distribution and flow conveyance, while imperviousness determines the subcatchment subdivision and influences surface water generation. Application of the Thiessen polygon approach can simplify the construction of large-scale urban storm water models, but the model is sensitive to the sewer network configuration and care must be taken in parameterizing areas (polygons) with heterogenous land uses.

Impacts of urban storm-water drainage channels on a northern Australian mangrove forest

Trees ◽  
2001 ◽  
Vol 16 (2-3) ◽  
pp. 195-203 ◽  
Author(s):  
Anja Moritz-Zimmermann ◽  
Keith A. McGuinness ◽  
Manfred Küppers
Keyword(s):  
Mangrove Forest ◽  
Storm Water ◽  
Water Drainage ◽  
Drainage Channels ◽  
Urban Storm

A Conceptual Tank Model for Urban Storm Water System

2013 ◽  
Vol 777 ◽  
pp. 430-433
Author(s):  
Xing Po Liu
Keyword(s):  
Low Impact Development ◽  
Water System ◽  
Storm Water ◽  
Rainfall Runoff ◽  
Sewer System ◽  
Tank Model ◽  
Objective Model ◽  
Principles Of Design ◽  
Urban Storm ◽  
Storm Sewer

In order to cope with urban flooding, water scarcity and rainfall-runoff pollution comprehensively, a conceptual tank model of urban storm water system is proposed. Tank model is a multi-layer, multi-objective model, so design of urban storm water system is more complex than that of urban storm sewer system. Some principles of design of urban storm water system are discussed, such as Low Impact Development, Smart storm water management, and so on.

Institutional Change through Innovation: The URBAN Community Initiative in Berlin, 1994–99

10.1068/c0416 ◽  
2005 ◽  
Vol 23 (5) ◽  
pp. 697-713 ◽  
Author(s):  
Charlotte Halpern
Keyword(s):  
Urban Policy ◽  
Urban Poverty ◽  
Policy Instruments ◽  
Balance Of Power ◽  
Local Networks ◽  
Government Structure ◽  
Process Of Change ◽  
Community Initiative ◽  
The Cold War ◽  
The City

Reunification profoundly challenged the local government structure inherited from the Cold War period in Berlin. Yet this sudden socioeconomic and political change did not produce any immediate impact on institutional arrangements or policy instruments within the urban policy field. In this context, the implementation of the European Community Initiative URBAN, between 1994 and 1999, offered an opportunity to actors who were willing to challenge the existing balance of power to contest the legitimacy of preexisting interests and representations. The author argues that, in a context of competing interpretations of the issues raised by segregation processes which have left pockets of poverty in both parts of the city, the URBAN programme has managed to become an important driving force behind an underlying process of change. Its innovative approach to urban poverty and social exclusion exerted an impact on the parameters of this process of change, exacerbating existing political and organisational conflicts and challenging local networks, sources of legitimacy, and policy instruments.

Possibility of using compensatory urban drainage techniques as leisure units to expand public areas into subdivisions

2021 ◽  
Vol 13 ◽  
Author(s):  
Geovana Geloni Parra ◽  
Bernardo Arantes do Nascimento Teixeira ◽  
Érico Masiero ◽  
Thais Borges Martins Rodrigues
Keyword(s):  
Social Interest ◽  
Urban Drainage ◽  
Rain Gardens ◽  
Public Areas ◽  
Retention Basin ◽  
Housing Complex ◽  
The City ◽  
Housing Estates ◽  
Drainage Technique

Abstract Many housing estates of social interest have not contributed to implementing leisure areas and reducing their environmental and urban quality. This paper aims to propose a leisure unit using a compensatory urban drainage technique in a housing complex of social interest in the city of São José do Rio Preto, São Paulo, Brazil. The characterization of the area, land use and occupation surveys, area sectorization, and catchment division were carried out. Afterwards, proposals for interventions based on surface runoff were presented using calculations of existing runoff and future scenarios. Results related to environmental and social gains for the area are discussed, as well as the possibility of implementing decentralized compensatory techniques. Moreover, 156 rain gardens and 3 ditches were proposed throughout the subdivisions, which enabled a gain of 989m² of contribution area to infiltrate the whole area, and the use of the retention basin as a leisure area. The total storage volume achieved with the sum of all the techniques implemented was approximately 3,000 cubic meters more than that projected for the existing retention basin.

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