“…The larger effect of climate change, however, will not be increased frequency of intense rainfall events, but rather the changes that will be made to the urban environment and UDS to mitigate these effects (Kourtis & Tsihrintzis 2021). When the awareness of water issues inevitably results in wide-spread adoption of what is known in China as 'Sponge Cities' ( Jiang et al 2018), RTC of combined sewer systems is unlikely to remain a major factor in CSO pollution reduction.…”
Real Time Control (RTC) is widely accepted as a cost-effective way to operate urban drainage systems (UDS) effectively. However, what factors influence RTC efficacy and how this might change in the long term remains largely unknown. This paper reviews the literature to understand what these factors likely are, and how they can be assessed in the future. Despite decades of research, inconsistent definitions of the performance of RTC are used, hindering an objective and quantitative examination of the benefits and drawbacks of different control strategies with regard to their performance and robustness. Furthermore, a discussion on the changes occurring and projected to occur to UDS reveals that the potential impact of these changes on the functioning of RTC systems can be significant and should be considered in the design stage of the RTC strategy. Understanding this ‘best-before’ characteristic of an RTC strategy is the key step to ensure long term optimal functioning of the UDS. Additionally, unexplored potential for RTC systems might exist in the transitions, rehabilitation and construction of drainage systems. The research gaps highlighted here could guide the way for further development of RTC strategies, and enabling more optimal, long term implementation of RTC for urban drainage systems.
“…The larger effect of climate change, however, will not be increased frequency of intense rainfall events, but rather the changes that will be made to the urban environment and UDS to mitigate these effects (Kourtis & Tsihrintzis 2021). When the awareness of water issues inevitably results in wide-spread adoption of what is known in China as 'Sponge Cities' ( Jiang et al 2018), RTC of combined sewer systems is unlikely to remain a major factor in CSO pollution reduction.…”
Real Time Control (RTC) is widely accepted as a cost-effective way to operate urban drainage systems (UDS) effectively. However, what factors influence RTC efficacy and how this might change in the long term remains largely unknown. This paper reviews the literature to understand what these factors likely are, and how they can be assessed in the future. Despite decades of research, inconsistent definitions of the performance of RTC are used, hindering an objective and quantitative examination of the benefits and drawbacks of different control strategies with regard to their performance and robustness. Furthermore, a discussion on the changes occurring and projected to occur to UDS reveals that the potential impact of these changes on the functioning of RTC systems can be significant and should be considered in the design stage of the RTC strategy. Understanding this ‘best-before’ characteristic of an RTC strategy is the key step to ensure long term optimal functioning of the UDS. Additionally, unexplored potential for RTC systems might exist in the transitions, rehabilitation and construction of drainage systems. The research gaps highlighted here could guide the way for further development of RTC strategies, and enabling more optimal, long term implementation of RTC for urban drainage systems.
The objective of this paper is to identify and analyze relevant research of index-based methods for the evaluation of climate change vulnerability and resilience of coastal areas. We searched, retrieved, classified and reviewed papers on climate-change hazards, impacts, vulnerability and resilience of coastal water systems and relevant infrastructure. For this, Scopus, Science Direct, Thompson-Reuters Web of Science, Google Scholar, PubMed and other relevant databases were used. The analysis of the state-of-the-art presented in this paper acknowledges that using vulnerability and resilience indices in climate vulnerability research is effective, providing a solid, efficient and user-friendly framework. However, selection of index variables should be part of a holistic as well as dynamic approach to identify not only areas in danger, but also the level of social vulnerability.
“…Based on a digital map made on the Arc View 3.2 and ArcGIS 10 platforms, the most dangerous areas of mudflow manifestations were identified, and settlements located in the area of high mudflow activity were identified [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15].…”
Mountainous and largely foothill areas of the Republic of Uzbekistan are mudflow hazardous. In the Tashkent region, there are two mudflow river basins (dangerous concerning the manifestation of mudflows): the Chirchik river basin and the Akhangaran river basin. Based on the results of long-term observations of the Uzhydromet service, a digital map of the mudflow hazard in the Tashkent region for a century was compiled. The method for determining the damage from the action of mudflows on a specific object consists of determining the equivalent mudflow pressure according to its initial parameters. According to the methodology for assessing damage in the event of a natural emergency, the main parameters of the damaging factors were determined during the passage of a mudflow in the event of intense rainfall. The calculations were performed for two scenarios: 1) with dangerous rainfall with an intensity of 30 mm per day; 2) in case of especially dangerous rainfall with an intensity of 60 mm per day. Based on the calculations performed, the amount of damage to the national economy of the Tashkent region was determined during the passage of a mudflow caused by intense rainfall.
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