Shaded Alleys: Streets Where Width Controls Temperature

A street only 4 meters wide, with buildings on both sides 18 meters high, creating a height-to-width ratio close to four to one, so the street is in shadow for most of the day. The exterior walls of the buildings on both sides are terracotta-colored precast concrete panels, with three-dimensional geometric perforations on the surface, a contemporary version of traditional grilles. The street paving is light-colored permeable pavement, with high reflectivity and no heat retention. The alleyway is deliberately made slightly curved rather than straight, to block direct hot winds. A ventilation tower can be seen at one end of the street. Photographed at noon, with only a sliver of sunlight at the very top. Avoid: wide street, low buildings on both sides, dark asphalt paving, straight long axis for the alleyway.

Translated from Chinese by AI.

一條寬度只有 4 公尺、兩側建築高 18 公尺的街道,高寬比接近四比一,因此一天之中大部分時間街道都在陰影裡。兩側的建築外牆是赤陶色的預鑄混凝土板,表面有立體的幾何鏤空,是傳統花格的當代版本。街道的地坪是淺色的透水鋪面,反射率高不蓄熱。巷道刻意做成微彎而非筆直,阻擋熱風直吹。街道的一端可以看見一座通風塔。正午拍攝,只有頂端一線陽光。避免:街道做寬、兩側建築做低、地坪使用深色瀝青、巷道畫成筆直的長軸。