Strategic use of different urban green coverage (UGC).
|UGC||Green open spaces||Trees||Green roofs||Vertical greening|
|Shades canyon surfaces?||Yes, if grass rather than concrete||Yes||Shades roof, not internal canyon surfaces||Yes|
|Shades people?||Yes, if treed||Yes||No, only very intensive green roofs||No|
|Increases solar reflectivity?||Yes, when grassed||Yes||Yes, if plants healthy||Yes|
|Evaporative cooling?||Yes, with water||Yes (Unless severe drought)||Yes, with water when hot||Yes, with water when hot|
|No, without water||No, without water||No, without water|
|Priority locations||• Wide streets with low buildings − both sides||• Wide streets, low buildings − both sides||• Sun exposed roofs||• Canyon walls with direct sunlight|
|• Wide streets with tall buildings − sunny side||• Wide streets, tall buildings − sunny side||• Poor insulated buildings||• Narrow or wide canyons where trees are unviable|
|• Green open spaces||• Low, large buildings|
|• Dense areas with little available ground space|
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