6.2.3. Drainage water system Drainage is the method of removing surface or subsurface water from a given area. Drainage systems include all of the piping within a private or public property that conveys sewage, rainwater, and other liquid waste to a point of disposal . Residential drainage systems remove excess water from residential areas. This system helps whisk water away from walkways, driveways, and roofs to avoid flooding. Residential drainage systems are very important as they prevent rotting, mold, mildew, and structural damage in buildings from a buildup of water. (https://www.schoolofpe.com/blog/2017/08/basic-types-of-residential-drainage-systems.html).
In this project , we adopted drainage water adopted on contour lines and street pattern and construction , rainwater will meet at the lowest point in the area , having a green structure contributes in absorbing the water especially in the buffer zone Which trees depend on absorbing wastewater in the site . In each rooftop there will be a pipe for rainwater fall, which is connected to the surface water system. Palestinian Water Authority. (2020)
Figure (5): Material that used for the streets Source: Pinterest
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