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Parking lots are highly impervious.. Impervious surfaces are mainly artificial structures—such as pavements (roads, sidewalks, driveways and parking lots, as well as industrial areas such as airports, ports and logistics and distribution centres, all of which use considerable paved areas) that are covered by water-resistant materials such as asphalt, concrete, brick, stone—and rooftops.
Not to be confused with Grundflächenzahl (GRZ), which is the Site Coverage Ratio. In India floor space index (FSI) and floor area ratio (FAR) are both used. [7] In the United Kingdom and Hong Kong both plot ratio and site ratio are used. [8] [9] In Singapore the terms plot ratio and gross plot ratio (GPR) are more commonly used.
Download as PDF; Printable version; In other projects ... move to sidebar hide. Coverage ratio may refer to Building coverage ratio, related to floor area ratio ...
Flooded streets in New Orleans Relationship between impervious surfaces and surface runoff Urban runoff is a major cause of urban flooding , the inundation of land or property in a built-up environment caused by rainfall overwhelming the capacity of drainage systems , such as storm sewers . [ 12 ]
The primary requisites for application of cluster development are that all principal or accessory uses are allowed and that multifamily dwelling, duplexes, and townhouses are permitted. As well the application of maximal lot coverage, floor area ratios, building height, and parking requirements to the entire site as opposed to the individual lot.
Sidewalks are a common form of hardscaping. Hardscape is hard landscape materials in the built environment structures that are incorporated into a landscape. [1] This can include paved areas, driveways, retaining walls, sleeper walls, stairs, walkways, and any other landscaping made up of hard wearing materials such as wood, stone, and concrete, as opposed to softscape, the horticultural ...
Any remaining runoff from a rain garden will have a lower temperature than runoff from an impervious surface, which reduces the thermal shock on receiving bodies of water. Additionally, increasing the amount of permeable surfaces by designing urban rain gardens reduces the amount of polluted stormwater that reaches natural bodies of water and ...
Surface runoff often occurs because impervious areas (such as roofs and pavement) do not allow water to soak into the ground. Furthermore, runoff can occur either through natural or human-made processes. [5] Surface runoff is a major component of the water cycle. It is the primary agent of soil erosion by water.