Global Policy Overview of Groundwater in Urban Development—A Tale of 10 Cities!

There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

Abstract

Urbanisation is the predominant global phenomenon of our time. This overview provides an assessment of the trends in both public and private use of groundwater for urban water-supply in 10 developing cities and their policy implications, which is based on the global experience during 2001–2012 of the World Bank—Groundwater Management Advisory Team (a multi-disciplinary team of groundwater specialists working long-term for the World Bank, with special funding principally from the Netherlands Government supplemented by the United Kingdom and Denmark), together with subsequent follow-up enquiries. The strategic assessment analyses both the benefits to water users and the broader community of groundwater use, and the associated risks in terms of (a) compromising resource sustainability, (b) impacting the built infrastructure, (c) public-health hazards arising from widespread groundwater pollution and (d) the economic distortion of water-sector investments.

Related collections

Most cited references 8

Record: found
Abstract: found
Article: not found

Flood risk assessment in metro systems of mega-cities using a GIS-based modeling approach

Shui-Long Shen, Wen-Juan Sun, Hai-Min Lyu … (2018)

Metro system is a vital component of mass transportation infrastructure, providing crucial social and economic service in urban area. Flood events may cause functional disruptions to metro systems; therefore, a better understanding of their vulnerability would enhance their resilience. A comparative study of flood risk in metro systems is presented using the analytic hierarchy process (AHP) and the interval AHP (I-AHP) methods. The flood risk in the Guangzhou metro system is evaluated according to recorded data. Evaluated results are validated using the flood event occurred in Guangzhou on May 10, 2016 (hereinafter called "May 10th event"), which inundated several metro stations. The flood risk is assessed within a range of 500 m around the metro line. The results show that >50% of metro lines are highly exposed to flood risk, indicating that the Guangzhou metro system is vulnerable to flood events. Comparisons between results from AHP and I-AHP show that the latter yields a wider range of high flooding risk than the former.

0 comments Cited 73 times – based on 0 reviews      Review now

Bookmark

Record: found
Abstract: found
Article: not found

Risk assessment of mega-city infrastructures related to land subsidence using improved trapezoidal FAHP

Hai-Min Lyu, Shui-Long Shen, Annan Zhou … (2019)

This study presents an improved trapezoidal fuzzy analytic hierarchy process (FAHP) to assess the risk of mega-city infrastructures related to land subsidence. The trapezoidal fuzzy numbers are used to express the relative importance between assessment factors. A new questionnaire is proposed in this study to collect judgements from consulting experts. Both the original AHP and the trapezoidal FAHP with the new questionnaire are applied to assess the risk of infrastructures in relation to land subsidence in Shanghai. The risks assessed using the trapezoidal FAHP at locations with significant infrastructures are higher than those assessed using the original AHP. This indicates that the trapezoidal FAHP method with the new questionnaire can be used to effectively capture the high risks for significant industrial infrastructures related to land subsidence. Moreover, the obtained results were compared with the current land subsidence prevention zone, and it was observed that the existing land subsidence prevention zone in government management guidelines does not sufficiently consider the vulnerability of significant infrastructures.