The article states that the smaller alleyways create breezes and since they’re more tightly packed it’s shaded almost all the time. Ends up being cooler.

We need to implement the implement Wind Towers in the dry climates of the US. They wouldn't help as a pedestrian, but they help to expel heat in buildings when it isn't windy and to actively cool buildings when it is windy. This single piece of technology could desperately help the American Southwest.

Combine these with tighter buildings and local plant-life and people will be much better off.