REDESIGNING A NEGATIVE SPACE THROUGH CPTED IN SUSUKINO DISTRICT, SAPPORO, JAPAN

As an impact of prostitution site, criminality is triggered by a negative space; however, prostitution site in Japan is a part
of the city. Susukino in Sapporo, for example, plays a role as a tourist attraction as well as a prostitution site. This research
aims to figure out how the architectural design in Susukino influences criminality prevention as an effect of prostitution sites.
Survey and interview were conducted to observe zonation in Susukino and to define a negative space as a problem of the
district. Later, six aspects: 1) Defensible space, 2) Territoriality, 3) Surveillance, 4) Lighting, 5) Landscaping, and 6) Physical
security; based on CPTED (Crime Prevention Through Environment Design) theory were applied as a basis to improve the
quality of the street in the negative space by purifying the landmark and activating the street by adding positive functions.