Rotterdam is a city with strong dynamic: locals, a great number of immigrants, as well as international ones constitute the density of Rotterdam. However, since the bombardment during WWII, the city became the experiment of doctrine of functionism. Big roads for traffic which disconnect the urban public spaces; tall buildings, on one hand, give a capacity of large amount of people, on the other hand, give the cold feeling to the locals. In order to bring more lively sceneries in the city center, we were more concerned about density in the Lijnbaan area through time in the beginning. By studying density through time, we understood there are two major groups of people using the area: one is who comes here with strong purpose, such as shopping purpose, which we define it as “Heteropic group”; the other is who comes here with his/her daily routine, such as treats the benches in Lijnbaan street as part of his/ her daily life, which we define it as “Isotopic group”. The two major groups create two different conditions: Heterotopia and Isotopia. The two kinds of conditions are influenced by not only people themselves, but also the physical setting of the environment, such as building typology, functions, high, accessibility, and street furniture.By knowing how to create or control the two conditions, we can bring back the density even in the evening in our site, which is currently dead at night. Moreover, by investigating the site mechanism, we know which groups to target in order to facilitate the Lijnbaan area, and what kind of programs could be inserted in our design. In short, through physical settings of street furniture, building typology, function
etc, we will be able to create two different conditions, and allow the two conditions emerge at the same time which is the show time of public realm.