by R. Ramdani; (Thesis M.Sc Unesco-IHE, Delft, Netherland, 2016) supervised by Prof. Dr. Charlotte de Fralture, M. Sc., Prof. Dr. Robiyanto H. Susanto, M. Agr. Sc., and Dr. F.X. Suryadi M.Sc.
Development of Metmpolitan Bandung Region as urban area is in line with economic and social activities. Moreover, increasing population brings the area to becomeadenserareaandithnplicatesadecreasingopenSpacewhichdistmbs environment water cycle. In other words, increasing population and limitation of open area are the biggest challenge to fulfill water demand of the area. Therefore, the condition of the area should determine alternatives water sources.
Water harvesting is one of the alternatives to a water source that can be applied in urban area. Urban pavement area can be used as a water catchment of water harvestingbecausenmoffofrainfallintheareahasabigpotemialtoharvest. Moreover, the region has 35 km long of Padaleunyi toll road which has big potential water harvesting catchment area. The result of water harvesting of the toll road can be utilized as a backup water source for urban agriculture area surrounding the road.
This thesis aims to identify potential water harvesting from Padaleunyi toll road and to determine appropriate water storage and other required infrastructures to supply water in the dry season in every year.
The approach of the research is using RAM module of Duflow Modelling Studio (DMS) to determine potential water harvesting from the Padaleunyi toll road. The water harvesting storage is designed to accomodate potential water volume from the modelling and also it considers free space availability to build the water storage.
The minimum volume of water from water harvesting in 12 locations is 779,331 m3. Moreover, the extension volume of water harvesting results in 1,032,271 m3 or it will add 25 % of extra water. The extension connects the other locations without free space to the 12 storages. In addition. the storages of water harvesting are divided by two types: agriculture storage and intersection storage.
The harvested water is utilized for urban agriculture around the toll road and toll road maintenance. As agriculture purpose, the available water is used for supplemental irrigation to reach maximum crop yield in dry season period. The toll road purpose is to extinguish a fire in roadside of the toll especially during dry season. Moreover, the storage capacity is added 10 % extra volume and it can be functioned as retention pond if there is an excess water from another catchment.
Another important thing is that the water harvesting facilities should be maintained periodically which would extend life time of the facilities.
Keywords: Water Harvesting, Duflow Modelling Studio, Urban Agriculture
