In this report, I examined the accuracy of SAHI (Slicing Aided Hyper Inference), a "small object detection" method, applied to village landscape images. I found that object detection with the addition of SAHI was able to detect finer details. Until now, in wide-angle images such as those of village landscapes, it has often not been possible to clearly detect the individual buildings that are elements of the village area's landscape. In this context, my findings suggested that image analysis via SAHI is an effective method. However, on the other hand, there were some areas where the detection accuracy (e.g., rate of false positives, detection rate) was weak. There are many possible reasons for this outcome, but one factor could be a lack of additional training of the machine-learning model. I will continue to investigate these impeding factors and consider image analysis methods that will yield better village landscape images.

In this study, we conducted a trial analysis using text mining on review information of the passenger ship terminal facility, which is the core base of "Minato Oasis," with the aim of improving the reception environment of "Minato Oasis." As a result, we confirmed that it is important for the passenger ship terminal facility to develop and expand public transportation as a transportation hub of "Minato Oasis," to manage toilet hygiene as a gateway to "Minato Oasis," and to introduce and expand parks and open spaces as a core base of the region.

This repot is that the result of questionnaire relationship between making plan “Rekimachi” under the law on the Maintenance and Improvement of Historic Landscape in a Community, and maintenance as sightseeing spot or area. Tourism industry which is thought easily linked as an effect with making plan of “Rekimach”. Therefore, what initiatives and responses by local municipalities are organized.

In this study, to extract key considerations in the “project planning process” focusing on privately-owned land at eye level, we analyzed cases of Integrated Stay Comfort Improvement Projects and the Walkable Promotion Tax System to clarify their characteristics. As a result, there are five points to be considered in the “project planning process,” and in order to utilize the system, it is important to consider fairness to the surrounding area in the selection of the project site and in the examination of public nature and integrity of the project.

Roof ridge orientation of machiya (traditional merchant house) is a key element of streetscape. As the number of machiya has been decreasing in recent years, basic survey is urgently needed. Furthermore, because the direction of roof ridge may change within a narrow area, it is necessary to conduct a nationwide investigation on a per-settlement basis. This research is targeted at Saitama prefecture. It also looks at remaining condition and facade design of machiya in major district of each settlement.

The purpose of this paper is to clarify the usage of former military land and buildings by national universities in Hokkaido and Tohoku region.Aomori Medical College, Aomori Normal School, Morioka Technical College, and Second High School, which were damaged by air raids, used former military barracks and a former military school as substitutes for their affiliated hospital and school buildings. Among universities and colleges which were not damaged by air raids, Hokkaido University used a former military airport as a farm, and Akita Mining College used former military barracks and army officers' club as student dormitories.In the 1960s, Hirosaki University and Akita University incorporated former military land adjacent to their former campuses as expansion land, consolidating their campuses. Tohoku University consolidated its campus on the huge former military land surrounding the castle ruins from the 1950s, and it is a current expansive campus.

This study focuses on the observation that many current road space utilizations remain limited to pedestrian-only streets or streets where pedestrians and vehicles are spatially separated, with few examples of “curbside roads” where pedestrians and vehicles share the same space. The purpose of this research is to clarify effective utilization methods for “curbside roads” in central commercial districts. It was found that in all target areas, functional zoning is achieved by allocating traffic functions to arterial roads on the outer perimeter of the district and placing pedestrian-oriented roads within the inner area. Additionally, for "curbside roads" designated under the pedestrian convenience road system, safety is ensured by implementing traffic regulations and clarifying traffic flows, while also providing space for pedestrian stay and use.

The Location Normalization Plan aims to prevent urban sprawl and promote the concentration of urban functions in urban facility guided zone and establishes notification and recommendation systems for construction and development activities outside that zone. However, in reality, the number of facilities located within these zones has not significantly increased. This study clarifies the current location of guided facilities and actual implementation of the notification and recommendation systems for guided facilities constructed outside urban facility guided zones. This paper concludes that many guided facilities located within urban facility guided zones were not guided by the Location Normalization Plan. Additionally, it was found that it is difficult to control through municipal notification and recommendation systems, due to the lack of enforceability of this plan.

The United States has a long history of rent control with repeated introduction, relaxion, and abolition in response to the housing market trends. Rent control provides existing tenants with a guarantee of continued housing, but it also entails costs such as reduced labor mobility, mismatches between tenants and housing units, higher rents for unregulated housing units, reduced real estate values, reduced property taxes, and less construction of new rental housing. It is not sure for existing tenants can enjoy the benefit in the long term, and new tenants bear costs due to the reduction in rental housing units. Lessors of regulated housing could reduce costs to zero with effort, and those of unregulated housing can enjoy windfall benefits. In either case, the impact is wide-ranging and different for many stakeholders, so the introduction and implementation of rent control requires great care.

Globally, urban planning is increasingly required to address climate change, biodiversity conservation, and social inclusion. Amid this, the French government and the City of Paris have formulated policies and spatial planning framework that incorporate environmental and social initiatives. This study focuses on Paris’s new spatial plan (PLUb) and analyzes the implementation of higher-level environmental policies in spatial planning by combining literature review, interviews, and field surveys. Findings show that Paris has implemented plans and projects ahead of the French government, and that PLUb incorporates higher-level policies while taking into account its own characteristics and previous efforts. Furthermore, the implementation of these initiatives demonstrates an attempt to comprehensively address diverse goals related to climate change and biodiversity.

This study examined the utilization of administrative plans and area-based visions in pedestrian-friendly road implementation through a questionnaire survey of 139 designated roads as of March 31, 2024. While plan utilization during implementation was limited, it effectively functioned in consensus building and legitimizing system introduction. The study concluded that utilization possibilities vary according to stakeholder attributes across different scenarios including consensus formation and road space utilization policy development.

This study estimates the improvement effects of “self-sufficient population decentralization”, a concept proposed to address Japan's low food self-sufficiency rate and urban population concentration issues. The analysis sets scenarios that consider the decline in the number of agricultural and fishery workers exceeding the population decline, as well as the trend toward improved production efficiency in agriculture. According to long-term projections of food supply and demand balances and farmland utilization by prefecture, it was demonstrated that by promoting population dispersion to rural areas while ensuring a stable food production workforce, it is possible to raise the national food self-sufficiency rate to 90% by 2105 and suppress the reduction in farmland area. This suggests the necessity of comprehensively implementing population decentralization to rural areas and interventions in occupational structure.

Social changes, such as the spread of information and communications technology and work-style reform, have led to major changes in people’s daily activities. Therefore, we investigated multiple activities of daily life behavior over a long period, including the COVID-19 pandemic, in terms of the time spent on different activities, and we clarified how people’s daily life behavior was changing. We found that the time spent on activities such as work and school on Saturdays is decreasing, the younger generation is spending less time on housework and more time on hobbies and entertainment, and the older generation is spending more time shopping. Also, we found that the increased time spent resting and the decreased time spent socializing are not temporary changes due to COVID-19.

The purpose of this study is to identify multiple methods of public space utilization for strategizing tactics by analyzing both the strategies of public space utilization from administrative planning and area-based vision perspectives, and the tactics of public space utilization from pilot projects and event implementation perspectives, using the central district of Kumamoto City as a case study. As research methods, we cond ucted literature reviews and interviews with localgovernments and space managers.The research findings revealed the effectiveness of positioning strategies and tactics in the utilization of multiple public spaces and clarified the distinct roles that public and private sectors play. As a conclusion, this study demonstrates that when both strategic and tactical approaches complement each other, public space utilization extends beyond one-off efforts and contributes to the realization of space creation tailored to local community conditions.

This study aims to clarify the challenges and future prospects of Japan's "Hokomichi" (Pedestrian-Friendly Promoting Roads) system. We examine the transition from the special road occupancy exemptions introduced during the COVID-19 pandemic to other permanent systems, analyzing subsequent trends in road space utilization. While the COVID-19 exemptions confirmed the viability of continuous road occupancy under relaxed standards, the transition process has revealed three primary challenges: (1) non-compliance with structural standards, (2) failure to meet official designation requirements, and (3) the need for clear rules governing store usage.

In the Asahikawa region of Hokkaido, Asahikawa City, Takasu Town, and Higashikagura Town have formulated their Location Normalization Plans for compact city formation. This study investigates the contents of the Location Normalization Plans of the above three municipalities and actual situation of regional cooperation. Takasu town and Higashikagura town share public facilities in Asahikawa city and intend to prevent the over-provision of public facilities and achieve sustainable urban management. Towns face significant disadvantages, such as the financial burden when the towns develop facilities independently. Regional cooperation and facility sharing are solutions to these concerns. Maintaining bus routes is also important for ensuring residents' access to these facilities.

The Off-site Green Space System under the Factory Location Act allows factories to meet green space requirements by developing greenery outside their premises when on-site space is limited. This study examines the enactment, implementation, and challenges of this system across municipalities through specific case studies, aiming to identify effective approaches for its utilization. While the system enables factory renewal and promotes quality greenery on public land through coordination between relevant departments, issues arise with greenery on private land, where inadequate municipal oversight can lead to low-quality green spaces and misuse of the system as a deregulation loophole.

In this study, we compared the holiday migration behavior in the central area of Fukuoka City based on two attributes: general visitors and visitors with children, based on the results of a questionnaire survey conducted over an 11-year period. The results of the analysis of migration behavior in the Tenjin area over an 11-year period revealed a decreasing trend in the number of migration points due to the impact of Covit-19. The analysis of the circulation behavior among the three districts revealed that both the number of stops and the time spent in the area by visitors with children tended to decrease, and that the ratio of subway use also tended to decrease. These results indicate that it is important to create an environment in which visitors with children can comfortably tour the city center.

This study analyzes the bamboo installation Interstellar, awarded at the 4th Beijing Forestry University International Garden Festival in Chengdu. Designed as a wormhole-inspired bamboo structure, the project offered immersive spatial experiences and operated as a public space experiment. Experts praised its originality, while citizens valued its aesthetic, recreational, and emotional dimensions. Digital dissemination extended its influence beyond the exhibition. A China–Japan comparison and discussion yields three insights for bamboo utilization under demographic decline and aging: (1) intergenerational participation enhances the social and economic potential of public space; (2) transforming bamboo from “abandoned forests” into “public assets” provides ecological and governance benefits; and (3) linking cultural symbolism with digital media enables temporary installations to achieve lasting impact.

This report presents the results of a questionnaire survey on fruit theft victimization targeting 563 Japan Agricultural Cooperatives (JAs) nationwide. Based on the compilation of 260 responses, approximately half of the JAs had experienced fruit theft victimization, with grapes (budou), oranges (mikan), and pears (nashi) ranking as the top stolen crops. The thefts occurred frequently during late-night hours in the harvest season from July to September, and the perpetrators remained largely unidentified. Countermeasures against fruit theft include implementing patrols and installing security cameras, while efforts to encourage farmers primarily focus on promoting thorough locking of facilities and enrollment in income insurance programs. This report holds significance as providing fundamental data for the development of rural criminology in Japan.

In this study, we focused on the surrounding environment of parks utilizing Park-PFI and clarified the characteristics of the layout and facility planning of publicly offered facilities. There are six different layout patterns for publicly offered facilities, and it became clear that they need to be used in different ways, taking into consideration the surrounding environment of the park and park characteristics. It became clear that the private sector plans facilities in consideration of the characteristics of the layout patterns. In addition, it became clear that in order to plan facilities that take the surrounding environment into consideration, it is necessary to consistently consider it in the “park planning” process, which starts from the consideration stage of the Park-PFI project and ends with the acceptance of the publicly solicited establishment plan.

This study examined how runner attributes—including age, gender, residence, pace, frequency, and distance—may influence district preferences in Tokyo’s waterfront area. Public Strava GPS data from May 2025 and Tokyo’s land-use survey data were used to derive location quotients of both running and district characteristics. These were followed by correlation analysis, multiple regression with AIC-based variable selection (including Moran’s I tests for residuals), and k-means clustering. The results suggest several tendencies: women or foreign runners often prefer peripheral leisure districts; slower runners appear to place particular importance on parks; older or more frequent runners tend to concentrate in central residential districts; and long-distance runners are more likely to use peripheral industrial areas. These findings may provide guidance for designing “runnable” cities inclusive of diverse runners.

As the number of people involved in community development continues to decline, it is important to drive participation of citizens with initiative. In particular, the effective use of public space can serve as a means to engage a wider range of citizens in community activities. Based on a survey of visitors and exhibitors participating in the "Koganei Living" social experiment in Koganei City, this study aimed to explore ways of fostering citizens' awareness of initiative and promoting the use of vacant land by residents to create lively spaces. The first social experiment revealed that visitors had a low sense of ownership. The second experiment demonstrated that understanding the purpose of the project increased the participants' sense of ownership and led many visitors to express interest in exhibiting together with their friends. The third experiment showed that allowing visitors to temporarily take the initiative was effective in fostering a sense of ownership. Furthermore, exhibitors placed high value on interaction with visitors.

This study examines the feasibility of "affordable housing with integrated employment" for single-mother households, particularly those with preschool children. In metropolitan areas, the cost of private rental housing is high, and the ratio of rent to income frequently exceeds the recommended threshold of 30%. A comprehensive review of extant studies, complemented by a financial simulation encompassing Tokyo's 23 wards, undergirds the assertion that the integration of apartment management roles with rental housing provision has the potential to alleviate financial strain on tenants by reducing expenditures on staffing costs and housing subsidies. In lower-rent districts, the model may be viable without additional support. Furthermore, by empowering mothers to engage in part-time employment, pursue skill development, and subsequently transition to full-time employment as childcare demands decrease, this model exemplifies a pathway to sustainable independence and underscores the policy value of integrating housing and employment support.

This study developed a tool to estimate population growth at the district level using mobile GPS data and machine learning, which is crucial for assessing business feasibility and environmental impact in future urban development. A simulation model was established using training data sets that included GEOTRA Activity Data, ZENRIN Building Point Data, and other socio-economic data for Chuo, Koto, and Minato wards in Tokyo. Then, a case study was conducted in the Toranomon-Azabudai Area, Minato ward, with the simulation model, demonstrating reliable estimation accuracy. This result highlights the tool's potential utility in planning and decision-making processes, ensuring more informed and effective urban development strategies.

The purpose of this study is to clarify the status, transition, and façade design of monja and non-monja shops on Monja Street in Tsukishima, Chuo-ku, Tokyo, focusing on local shops and shops owned by outside capital, in order to specifically clarify the phenomenon of urban “theme parkification". As a result, the following findings were made clear. 1) The image of Tsukishima as a “town of monja” is established in a significant proportion by outside capital shops. 2) The number of outside capital shops has increased rapidly since 2015, in line with the transformation of Monja Street into a tourist destination. 3) Outside capital shops are proliferating while assimilating into the facade design of local shops.

This paper reports on the establishment and prospects of Harajuku Harappa Farm, a community garden temporarily developed on app. 1,500 m² of unused national land in central Tokyo. Initiated by local residents in collaboration with public agencies, the project overcame barriers to utilizing national land through multi-stakeholder partnerships. The farm incorporates experimental, shared, and educational plots, emphasizing composting and local resource recycling. From an urban planning perspective, the farm demonstrates the potential for temporary public land use to promote environmental education, community building, and circular resource management in cities. This case study highlights the necessity of policy frameworks that enable regenerative, citizen-driven uses of underutilized urban spaces.

This study focused on non-users with the aim of enhancing the social value of urban parks. Analysis at Sarue Onshi Park revealed that compared to the proportion of surrounding residents, adults, seniors, and adolescents used the park less frequently than preschoolers and elementary school children. Through social experiments and interviews, adults and seniors expressed high satisfaction with nature observation and photography workshops. Meanwhile, junior high school students showed greater interest in sports activities, social media appeal, and learning benefits. A questionnaire of non-users confirmed they seek "clear purposes" and "special experiences" at the park. These findings suggest that management tailored to the needs of each age group can contribute to user well-being.

In recent years, public spaces have been increasingly utilized across Japan to revitalize urban centers. To enhance public spaces as comfortable places for citizens, it is essential to understand actual stay behaviors and develop strategies to promote such behaviors. This study focuses on Tsukuba Center Square in Tsukuba City, where stay behavior surveys, installation of stay spaces, and participatory workshops were conducted to assess their effectiveness. The surrounding area has a concentration of public and commercial facilities, and stay behavior was found to vary significantly depending on nearby activities. The newly installed “Relaxation Space” supported group interactions but was less suitable for individual or quiet use. Designing stay spaces requires understanding actual use patterns and surrounding human activities. A lantern-making workshop was held for families, which successfully raised interest in the space. However, most participants already had high interest in such events, revealing a challenge in reaching citizens with lower levels of engagement.