Journal of Japan Society of Civil Engineers, Ser. D3 (Infrastructure Planning and Management)
Online ISSN : 2185-6540
ISSN-L : 2185-6540
Volume 76 , Issue 1
Showing 1-3 articles out of 3 articles from the selected issue
Paper (In Japanese)
  • Keisuke KABUMOTO, Kosuke TANAKA, Ayu MIYAKAWA, Satoshi FUJII
    2020 Volume 76 Issue 1 Pages 1-17
    Published: 2020
    Released: January 20, 2020
    JOURNALS FREE ACCESS

     To encourage appropriate public opinion and public decision on public infrastructure policy, the knowledge of how the public recognizes fact information and forms recognition is important. Based on this perspective, we conducted a psychological experiment to demonstrate the presence of “Kitsch” in public opinion on public policies. “Kitsch in public policy” means an unreasonable attitude that regards a public policy including obvious dangers as a beautiful idea and denies all information that does not support the public policy. In this research, we empirically demonstrated the presence of “Kitsch” by a psychological experiment on attitudes towards supporting three policies (reduction in public works, austerity, and neoliberal reform).

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  • Masaki YAMAMOTO, Shoshi MIZOKAMI, Yuta UENO
    2020 Volume 76 Issue 1 Pages 18-32
    Published: 2020
    Released: January 20, 2020
    JOURNALS FREE ACCESS

     One-way car sharing is widely spread mainly in Western countries, and cities that introduce it are still increasing. Meanwhile, Autolib’, once known worldwide as a successful example of a one-way type station-based car sharing service, ended its service at the end of July 2018. In this study, we discussed the causes of service discontinuation using interviews with related parties, literature review, and analysis of open data. From the viewpoints of convenience and profitability, we will consider the optimal location of stations and the appropriate business scale when introducing a one-way station-based car sharing service in Japan, referring to the results of these analyses. Furthermore, we examine the possibility of alleviation of the uneven distribution of demand as well as vehicles by the charging policy.

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Technical Report (In Japanese)
  • Yasuhiro AKAKURA
    2020 Volume 76 Issue 1 Pages 33-42
    Published: 2020
    Released: February 20, 2020
    JOURNALS FREE ACCESS

     The delays of container services, which are the cornerstones of global supply chains, have increased substantially. The punctuality rates declined to around 2/3 in minimum in 2018, and those of east-west trunk line probably less. Based on the background, this study grasped the punctualities of major container services in detail and analyzed the causes of delays. As a result, it was revealed that the average punctuality rate of east-west trunk lines was below 70%, and a little less than 80% of these delays were originated at ports in China, Europe and North America. The delays mostly occurred before berthing at Chinese ports. At Europe and North America, there were ports whose delays occurred mainly during berthing and ports whose delays occurred both before/during berthing.

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