日本建築学会計画系論文集
Online ISSN : 1881-8161
Print ISSN : 1340-4210
ISSN-L : 1340-4210
施設再配置を考慮した公共施設の段階的総量適正化に関する研究
-町田市を対象としたケーススタディと評価プロセスの検証-
大舘 峻一角田 誠李 祥凖
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ジャーナル フリー

2017 年 82 巻 732 号 p. 363-370

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 It is necessary for local governments to evaluate the total number of public facilities in consideration of facility relocation. Owing to the aging of several public facilities and the change in future demographics, the financial situation is deteriorating. In 2014, the Ministry of Internal Affairs and Communications officially announced “Formulate the request of the public facilities comprehensive management plan,” and the Ministry of Land, Infrastructure, Transport and Tourism published “PRE effective utilization guidelines for the town planning.” Based on this, it is urgently necessary to consider relocation of facilities for the management of public facilities.
 In this study, we categorized public facilities based on “building,” “function,” and “location” to create an evaluation method for public facilities based on previous research and evaluation methods. In the evaluation of buildings, we determined the degree of improvement that is required to improve earthquake resistance and the state of the outer walls, paint, and roof, of the building, as well as the associated equipment. In the evaluation of function, we determined whether the facility was operated at an appropriate cost and whether it provided sufficient public services. In the evaluation of location, we evaluated the convenience of the public facility in terms of traffic, and determined whether aggregation of facilities is valid at that location in the future. In addition, we developed a long-term utilization policy that considers utility after the completion of the useful life of the facility from these three evaluations.
 Further, we propose a maintenance method for a group of public facilities via facility relocation, based on previous research and evaluation methods. In order to consider facility relocation, we constructed a process to consider a stepwise manner, such as facility, region, and entire municipality. In addition, it is possible for each municipality to collect the necessary data for the management of public facilities.
 In order to verify the validity of the evaluation method and the constructed process, we conducted a case study on Machida-city. The working-age and youth populations of Machida-city are expected to decrease, whereas the elderly population is expected to increase. There are 342 public facilities here with a current total running cost of 17.4 billion yen. However, this cost is estimated to reach 16.3 billion yen by 2050. Further, in order to maintain the current number of public facilities, the actual cost, updated appropriately with maintenance costs, is 20.5 billion yen. Therefore, a shortage of 4.2 billion yen is expected in the future.
 The case study results are as follows. The gross area of public facilities was reduced by approximately 140, 000 m2. The facility costs can be expected to decrease to 18.3 billion yen. In other words, the reduction effect of the cost of public facilities can be called about 2.2 billion yen.
 In conclusion, we proposed a long-term utilization policy that considers utility at the end of the useful life of a facility. Additionally, the maintenance method and total optimization process of the facility via facility relocation, which was validated by verification with the target local government, is presented.

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© 2017 日本建築学会
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