We have similar trees in Vienna, and there are new ones planted all the time. Some areas are turned into pedestrian zones. It gets rather hot in Summer, so the city set up some cooling spaces with fountains. Mature trees do provide a lot of cooling though. In particularly the river valley in Vienna (but elsewhere also), we have a lot of big horse chestnut trees. A adventure walking among them in the Fall when the ripened chestnuts fall down. Wearing a helmet would be recommended 😂