In his book “Life Between Buildings: Using Public Spaces,” Jan Gehl identifies three types of outdoor activities: Necessary activities: These are essential tasks that people engage in while using public spaces, such as walking to work or running errands. These activities happen regardless of the weather and are unavoidable. Optional activities: These are chosen activities that occur when conditions are favourable, such as sitting outside or playing games. They are less likely to happen in bad weather and are influenced by the quality of the environment. Social activities: These activities involve people coming together, socializing, and interacting with each other. They can be spontaneous and occur in various settings. Social activities often emerge from the other two categories and are influenced by the physical setting of the space.