I know most of people may be confused by the title, especially those who love to live in a coastal or water city such as Venice, Sydney, Bangkok, and Amsterdam.
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| Amsterdam |
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| Bangkok |
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| Sydney |
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| Venice |
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| The Sydney Airport flooded |
I do not deny that those cities are famous and gorgeous. However, this blog will not talk about those beautiful water cities but focus on a severe urban problem which is urban drainage facilities.
As increasing urban expansion has caused problems with increased flash flooding after sudden rain because that vegetative land are replaced by concrete, asphalt or buildings resulting in the loss of rainwater absorb ability. So the urban drainage system plays an important role when there are a sudden heavy downpour. Especially, I have been studying in Sydney over one year, and I experienced several flash floods in Sydney particularly in the summer period. During that time, it is difficult to go out to work or study even you have private cars. Most of my classmates gain the feeling that we are likely to live in a 'water city', or they think that they could swim to the campus. In my opinion, this problem would not take place in developing countries but also some developed countries for the reason that those countries do not update their drainage system.
To alleviate this issue, countries and governments should build Sustainable Drainage System (SUDS) to help residents could live in a better living standard. So, what is SUDS? The concept of SUDS is to try to replicate natural systems that use cost effective solutions with low environmental impact to drain away surface water through collection, storage, and cleaning before it to be released back into the environment. There are several examples such as basins, rain-gardens, swales, filter drains, bio-retention basins, reed beds, and other kinds of wet habitats.
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