A case study aiming to promote cities resilience based on urban critical zone management as a whole

Author(s):  
Marion Diaz ◽  
Zahra Thomas ◽  
Alain Prenveille ◽  
Nicolas Floch

<p>Adaptation to global changes and promotion of cities resilience requires the development of integrated approaches to take into account the urban critical area as a whole. The major challenge is to assess this integrated approach evolving the main actors taking part on critical zone management. One way to do so might be the development of a network of actors and scientists committed to the long-term evolution of practices and having a common strategy for territories use. The poster presents a case study aiming to implement an integrated water management strategy in urban development based on the organization of a network of territory actors and scientists. The methodology here presented was built to focus on three main questions: what specific problems does integrated water management reveal for the various stakeholders? What are their usual opportunities of exchange and information? And which organization allows them to solve their problems, while taking into account the pre-existing networks on water management?. To answer these questions, we conducted comprehensive interviews with water and development stakeholders and representatives of networking organization.</p><p>Our results highlights the need of collaborative development of urban projects between planners and water managers: each of them is confronted with a diversity of concerns related to several factors, such as</p><ul><li>their position as a stakeholder in the intentional management of water or in the effective management of water;</li> <li>the scope of responsibilities of local communities in the management of wastewater, stormwater, drinking water, biodiversity ;</li> <li>the specific regional characteristics (coastal territories, morphologies of urban area).</li> </ul><p>Moreover, the results show that the existing networks address partially some of the questions: the study highlights in particular the lack of dialogue and knowledge transfer between water management actors and urban development actors, resulting in the design of urban projects that are not adapted to the new standards of urban management (e.g. stormwater). In addition, research projects are emerging in relation to big cities issues, but are sometimes in competition with each other. Also, the dissemination of results remains reserved for cities already endowed with significant engineering capacities.</p><p>Improvements in the networking is required to promote integrated urban water management, we come up with three organizational scenarios including objective analysis of existing networks of the main actors. The implementation of an integrated approach to hydrological systems linked to energy efficiency in urban areas requires taking into account the critical zone as a whole.</p>

2014 ◽  
Vol 70 (11) ◽  
pp. 1774-1781 ◽  
Author(s):  
Yifan Ding ◽  
Deshan Tang ◽  
Yuhang Wei ◽  
Sun Yin

Water resources in many urban areas are under enormous stress due to large-scale urban expansion and population explosion. The decision-makers are often faced with the dilemma of either maintaining high economic growth or protecting water resources and the environment. Simple criteria of water supply and drainage do not reflect the requirement of integrated urban water management. The Urban-Water Harmony (UWH) model is based on the concept of harmony and offers a more integrated approach to urban water management. This model calculates four dimensions, namely urban development, urban water services, water–society coordination, and water environment coordination. And the Analytic Hierarchy Process has been used to determine the indices weights. We applied the UWH model to Beijing, China for an 11-year assessment. Our findings show that, despite the severe stress inherent in rapid development and water shortage, the urban water relationship of Beijing is generally evolving in a positive way. The social–economic factors such as the water recycling technologies contribute a lot to this change. The UWH evaluation can provide a reasonable analysis approach to combine various urban and water indices to produce an integrated and comparable evaluation index. This, in turn, enables more effective water management in decision-making processes.


2008 ◽  
Vol 5 (2) ◽  
pp. 147-159 ◽  
Author(s):  
A. K. Sharma ◽  
S. Gray ◽  
C. Diaper ◽  
P. Liston ◽  
C. Howe

2020 ◽  
Author(s):  
Maria Pregnolato ◽  
Andrew O. Winter ◽  
Dakota Mascarenas ◽  
Andrew D. Sen ◽  
Paul Bates ◽  
...  

Abstract. Flood events are the most frequent cause of damage to infrastructure compared to any other natural hazard, and global changes (climate, socio-economic, technological) are likely to increase this damage. Transportation infrastructure systems are responsible for moving people, goods and services, and ensuring connection within and among urban areas. A failed link in this system can impact the community by threatening evacuation capability, recovery operations and the overall economy. Bridges are critical links in the wider urban system since they are associated with little redundancy and a high (re)construction cost. Riverine bridges are particularly prone to failure during flood events; in fact, the risks to bridges from high river flows and bank erosion have been recognized as crucial at global level. The interaction among flow, structure and network is complex, and yet to be fully understood. This study aims to establish rigorous practices of Computational Fluid Dynamics (CFD) for modelling hydrodynamic forces on inundated bridges, and understanding the consequences of such impact on the surrounding network. Objectives of this study are to model hydrodynamic forces as demand on the bridge structure, to advance a reliability analysis of the structure under the modelled loading and to assess the overall impact at systemic level. The flood-prone City of Carlisle (UK) is used as case study and a proof of concept. Implications of the hydrodynamic impact on the performance and functionality of the surrounding transport network are discussed. This research will help to fill the gap between current guidance for design and assessment of bridges within the overall transport system.


2020 ◽  
Vol 2 (1) ◽  
pp. 12-18
Author(s):  
Б. Тайванбат ◽  
О. Алтансүх ◽  
М. Энх-Үүр ◽  
K. Van Leeuwen ◽  
Steven H. A. Koop

The large number of people living together in urban areas requires a comprehensive solutions for issues such as the reasonable allocation and adequate use of natural resources, urban planning, and efficient waste management to meet the city's needs.  One of the main factors influencing the health and comfort of urban residents is the supply of clean water and sewerage systems. Therefore, in order to rationally allocate and use water resources to meet urban needs, and to create a healthy and comfortable living environment for city residents, it is necessary to develop an integrated water resources management plan at the national and basin levels, as well as an integrated water management plan and assessment for city level. In addition to assessing the current state of water management, it is important to identify factors and trends that may further strain water resources to prevent future risks. To address the pressures on water management in Ulaanbaatar and Darkhan, representing Mongolia's urban areas, the City Blueprint Approach, developed by the EU Water   Innovation Partnership and the Dutch Institute of Water Cycle, was used in this study. Currently, this approach is used in about 80 cities in more than 40 countries, it is a relatively new and innovative method among Asian cities. As a result, water management in Ulaanbaatar and Darkhan is hampered by both social, economic, and environmental factors.


2003 ◽  
Vol 47 (7-8) ◽  
pp. 73-79 ◽  
Author(s):  
K. Rahman ◽  
T. Weber

Impacts from urban stormwater runoff on receiving environments have been well documented, particularly through specific regional scientific studies. Using various local government planning and management elements, urban developments in Brisbane City are now able to address stormwater management in an increasingly holistic context. One key initiative includes facilitating Water Sensitive Urban Design (WSUD) components within an Integrated Water Management Strategy that looks at policy formation, planning strategies, design option, community marketing and acceptance, maintenance programs and finally evaluation of various WSUD approaches. These can include the use of Natural Channel Designs, grassed swales, bio-filtration systems, porous pavements and roofwater tanks in several economic combinations. By linking with the Cooperative Research Centre for Catchment Hydrology, Brisbane City Council has influenced the design of WSUD planning tools and benefited the city with academic inputs into extensive evaluation programs. As well, it has also contributed to the Cooperative Research Centre's research outcomes. These evaluation programs are increasingly providing better understanding of various stormwater quality best management practices throughout Australia. As part of the overall implementation process, active involvement by a range of stakeholders has been crucial. These stakeholders have included internal planning, development assessment and design staff, external consultants, developers, and other local and state government agencies. The latter two groups are assisting in the important task of “regionalisation” of Brisbane City Council's policies and guidelines. Implementation of WSUD initiatives and stormwater re-use strategies under Council's new “Integrated Water Management” agenda are showing some excellent results, suggesting that sustainable urban development is no longer like the search for the Holy Grail.


Author(s):  
A. Kaur ◽  
T. Ghawana ◽  
V. Singh ◽  
C. Arvind ◽  
D. K. Chadha

Water supply and demand gap is a potential crisis situation for any metro city like Delhi. This situation can escalate during the times of disaster events due to their cascading effects damaging the water storage and supply network infrastructure. Under this study, integrated water management has been emphasized as a comprehensive approach to address the crisis during extreme events. The process of integrated water management is described not only from water management perspective but also from perspectives of disaster management and Sustainable Development Goals. Emphasis on technological and institutional reforms for efficient and effective implementation during disaster event has been given. Along with this, the role of community participation is also considered as an integral component to make the proposed integrated approach sustainable. Results of an impact assessment study on human lives, economic and environmental conditions can be used to create holistic response plans which subsequently may result in disaster risk reduction and thus increased resilience towards vulnerability in disaster scenarios.


2013 ◽  
Vol 67 (5) ◽  
pp. 1137-1143 ◽  
Author(s):  
B. B. Karakoçak ◽  
O. Yenigün ◽  
R. T. Toraman

Water management in urban areas of developing countries is a major environmental challenge for the future. Within the framework of the IWA Cities of the Future Programme, current water and wastewater management systems are investigated in Kayseri, Turkey, with the purpose of bringing water into the center of city life by a reformed pilot project. In order to assess both the quantity and dynamics of water to be utilized in the Kayseri Amusement Park, the US Environmental Protection Agency's (US EPA) Storm Water Management Model (SWMM) 5.0 was used. The obtained results demonstrated that after 3 years, 38,039 m3 of rainwater could be stored in the two proposed underground storage tanks. Forty three per cent of the water-ski lake with a volume of 90,000 m3 could be recharged with the stored rainwater.


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