・Background&Objective
Currently in Japan, the population problem such as depopulation caused by a declining birthrate and demographic change caused by an aging population are growing. Especially in provincial cities, public traffics such as buses are forced to reduce or abolish due to those effects. Therefore, it makes the citizens difficult to go shopping or receive a medical / nursing care. In addition, an increase of traffic accidents by elderly people is becoming a social problem.
In this paper, in the case of Sakura City, we compare the present situation of route and citizen`s needs, based on those, we describe specific items to examine methods of sustainable traffic restructuring in provincial cities in order to suppress these problems and to aim at comfortable environment of city.
Sakura City in Tochigi Prefecture is a provincial city in Japan with a population of 44,784 people (as of 2018). This city was formed by the merger of 2 towns to promote administrative reforms. This city has some areas developed as a bed town adjoining Utsunomiya City, a central city of provinces with population of 520,393 people (as of 2018), and increases population. However, in the city as a whole, it`s a super-aging society with population aging rate of 23.8% (as of 2015).
・Method
To public traffics such as buses or taxis, based on the traffic estimation, results of questionnaire for elderly people and the several times field surveys, we analyzed the frequency of using by residents, the usage area, the usage time, the number of users, and examined the optimization of the transportation planning in the city.
・Conclusion
The theoretical traffic model was examined from big data of the city traffic and the present situation of trip. Moreover, the transportation system in provincial cities was shown.