At large-scale events such as the Olympics and Paralympics, it is important to guide people such as evacuation guidance in the event of crowded accidents, earthquakes or terrorism. In Japan, there are problems of guiding pedestrians, such as the walking direction of pedestrians is different depending on the locations and facilities. Globally, the pedestrian traffic rules are the same as those for automobiles, and the design of facilities is also performed based on them, so smooth traffic and evacuation guidance are possible. This paper shows the problems of traffic rules for pedestrians in Japan from the literature survey and the transition of road traffic legislation, and proposes measures to improve traffic rules from the viewpoint of crisis management.

 Relief supply distribution is a critical issue to mitigate the impacts of disasters. In Japan, two types of strategies, push-mode and pull-mode, are included in disaster management plan, for prompt and accurate relief distribution. Unfortunately, in fact bottlenecks in the last-mile distribution and requests from affected areas led to poor performance of the relief distribution strategy. Then, two empirical strategies have been newly proposed: ”Direct distribution to affected areas” and ”Transmission system independent of ICT”. To conduct quantitative evaluation on these empirical strategies for push-mode and pull-mode, our research analyzes inventory distribution strategies in the aftermath of a disaster, considering the distribution network with a direct link and the information network without continuous communication. As a result, it was demonstrated that distributing relief supplies directly is optimal strategy and the pull-mode may not be more effective than the push-mode when information transmission is continual, and shown the solutions to improve the pull-mode.

 The number of public transportation users have been decreasing in Kumamoto city recently. The smart cards have been introduced to public transportation in Kumamoto City. In the smart usage history data includes many kinds of information such as the getting-on date and time and the name of stops. By using these data, many analyses have been done, however, no studies have analyzed individual long-term preference changes. In this study, we analyze the time-varying characteristics of users' preference for city trams by using a state-space model. As a result, it is founded that all users are divided into several segments by the state variable estimates. Finally, we examine marketing measures to increase the number of passengers for each group.

 In this study, we analyzed the effectiveness of branding and design usage in mobility management (MM). We conducted surveys on spectators of the J-League football team Fagiano Okayama. According to the survey in 2019, 79% of the supporters were familiar with the project, out of whom as many as 92% were aware of the project’s name “FAGIWALKER”. In addition, the survey revealed that 11% of private car users were positively influenced by the project and converted to other means of transport. It also became clear that mode change is related to positive project images, which can be largely contributed to the project name and measures, especially to well-phrased/designed advertisements in JR and buses.

 In this paper, it was shown that three view points are necessary for introductions and managements of community buses etc. based on the past studies review, and it was clarified that the local governments with the handbook on community buses etc. introduction put higher importance on the three view points than other local governments. And a questionnaire for the persons in charge of the handbook revealed that the handbooks should include local citizens’ participation rule on the introduction and operation stage, prior presentation of the review criteria, and options matched with the scale of demand. And as an advanced efforts, the Saitama city’s handbook was evaluated and shown that the handbook realized the new introductions/existing reorganizations of community bus etc. in line with the city’s pre-determined public network concepts. And through appreciate local citizen’s participation, the new shared taxi services have introduced in many of low demand areas and income/expenditure were improved in existing reorganizations. And under the prior agreements on the review criteria, these services were improved continuously.

 Quantitative assessment of connection relationship of road links could be one of the most fundamental measures to evaluate road network connectivity, while there are many other factors to do so. In this study, firstly, an equal distribution problem is proposed to assess connection relationship of road links, i.e., connectivity of a road network. A road network connectivity measure based on the eigenvalue analysis is introduced to extract vulnerable connections in the road network. Secondly, a reinforcement optimization problem of links is formulated to improve the vulnerable connections in the network. It can be proved that this optimization is convex and it can be categorized as a semi-definite programming, which is a well-posed optimization problem. Lastly, some numerical examples are presented to demonstrate possible advantages of the proposed methods.

 In this research, we developed an efficient railway track maintenance scheduling model regarding ballast replacement works by using mathematical model for optimizing railway track maintenance strategy. The optimal strategy is investigated by considering the characteristics of operations for maintenance machines i.e. NBS and DGS. As several numbers of the machines are widely operated in actual railway, various constraints should be considered to decide the maintenance schedule. Therefore, the developed model can compute the optimal schedule plan and we confirm that our model is effective by test computation from the viewpoint of the sum of each machine’s moving distance per year. Furthermore, we propose the design of totally optimal decision support system for various track maintenance works.

 The taxi service is an adequate alternative of the public transportation service in small populated areas such as rural area. However, the capacity that the taxi operators can supply may be poor because of the decrease of the taxi drivers. Also the capacity cannot be assessed easily. Therefore, the taxi operators and municipalities may hesitate to change the public transportation to taxi services. In this study, we construct a mathematical planning model to simulate the operation of the taxi service by the limited number of drivers. Then, we apply this model to the operators in rural area using actual historical data of the operation. By comparing the results of several operators, the daily capacity is assessed empirically.

 For large-scale development activities, there is the planned development design system that creates public open spaces around buildings in exchange for easing the building coverage ratio and floor area ratio, and improves convenience for nearby users. However, as planar shape of public open spaces is complicated, there are problems with convenience. In this study, we used a fractal dimension that can express a complex shape with a single index, and extracted public open spaces constructed under the planned development design system in the special ward of Tokyo, and examined its planar shapes.