Recently, the installation of two-stage crosswalks has been promoted in Japan, however, jaywalking using zebra markings around the facilities has been observed. In this study, traffic flow simulation considering driver’s yielding behaviors was used to investigate the appropriate intervals for two-stage crosswalks under different roadside locations, road hierarchy, and traffic conditions when multiple two-stage crossing facilities are installed to increase the crossing opportunities for pedestrians. As a result, it was found that when two-stage crosswalks are installed at narrow intervals of 50 meters on an arterial road, the delay time of vehicles increases especially in areas with heavy pedestrian traffic, while the pedestrian delay time decreases mainly in cases with heavy vehicle traffic. It was also found that crosswalk type of two-stage crossing at low road hierarchy can be applied in the case of moderate traffic volume and the facilities cannot be applied in some cases on roads with narrow median width. Furthermore, it was demonstrated that 100-meter interval is appropriate to install the facilities located near bus stops.

 In order to create a “comfortable and walkable city center”, parks are required to play a role as a hub for interaction and stay, and Urban renewal corporation are expected to play a role in the development and management of these parks. This study focused on Honmachi Park in Wakayama City, which is one of the first parks in Japan to be developed and managed by urban renewal corporation and others using Park-PFI. Through the author's experience, literature survey and interviews, this study clarified the actual status, problems, and future measures of public private partnerships for urban development centered on Honmachi Park. Specifically, shows the following: 1) the planning and promotion of an integrated strategy for “walkable city planning” led by the author; 2) the intentions of the government in the creation of the city planning areas; 3) the actual status and innovations in the construction of public private partnerships that contribute to improving circulation and creating liveliness etc in the central area.