LABS FOR RAINWATER SOCIETY
Rainwater Coordinator Training Program
LRwS held a Rainwater Coordinator Training Program once a year since 2015. When promoting and spreading social implementation, we think it is essential to educate technical specialists about rainwater utilization technologies (rainwater harvesting) and raise awareness and skill levels among the general public.
The 2-days program provides lectures from the nation's leading experts and hands-on training called a Mini Studio. In a Mini Studio, participants experience various activities, including site analysis, design exploration on flood resilient neighborhoods, and pin-up sessions for sharing design outcomes through thinking actual sites.
The data for a Mini Studio is available!
In April 2019, a Mini Studio was held as part of the Technical Deep Dive (TDD) session at the World Bank's Tokyo Development Learning Center (TDLC).
The data is introduced in a LRwS co-authored handbook entitled "Mini Studios for Water Sensitive Urban Design: A handbook for organizers and facilitators." World Bank, Washington, D.C.
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Examples of Community and Nature-based Solutions
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Runoff reduction calculation sheet.
In collaboration with World Bank Disaster Risk Management Hub Tokyo, LRwS develops a list of innovative urban flood management measures that integrate various types of approaches such as community and nature-based solutions by drawing upon local and international examples and inspirations.
The list illustrates some of the community and nature-based solutions that have high flexibility in design, multi-functional use of space, and capacity of stormwater management. It summarizes innovative solutions explored and implemented for stormwater management in the Japanese context. This list should keep expanding by incorporating creative ideas and practices across the world.
The management capacity highlighted in the list tells the infiltration rate (in mm/hr) per unit areas (in square meter) of each such solution, determined in partnership with researchers from LRwS. Below formula brings the total volume of stormwater managed on site (Q), assuming a 1-hour rainfall duration (as in this example):
Q = Area of innovative tools applied on the site (A, in m2) X Management capacity (M, in mm/hr)
In this example, the basis is a rainfall of 75mm/hr intensity falling in one hour, as described in the calculation sheet.
Introducing a 100 m2 of permeable pavers will enhance the site's stormwater management capacity by 10 m3. In this way, by calculating and comparing the pre- and post-intervention stormwater management capacity, it is possible to understand how much runoff volume has reduced by applying various community and nature-based solutions.
Past program record:
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Rainwater Coordinator Training Program 2019 | Kyoto November 15th and 16th, 2019
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Rainwater Coordinator Training Program 2018 | Tokyo December 21st-22nd, 2018, in collaboration with the Zenpukuji River's Kaeru Kai in Suginami City
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Rainwater Coordinator Training Program 2017 | Fukuoka December 15th and 16th, 2017
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Rainwater Coordinator Training Program 2016 | Fukuoka December 17th and 18th, 2016
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Rainwater Coordinator Training Program 2015 Trial Edition | Fukuoka November 29th, 2015
This program has been recognized as a Continuing Professional Development (CPD) program by engineering, architectural, and landscaping societies since 2016.