DOI: 10.1016/j.apenergy.2019.114196
论文题名: Factors affecting CO2 emissions from private automobiles in Japan: The impact of vehicle occupancy
作者: Shiraki H. ; Matsumoto K. ; Shigetomi Y. ; Ehara T. ; Ochi Y. ; Ogawa Y.
刊名: Applied Energy
ISSN: 3062619
出版年: 2020
卷: 259 语种: 英语
英文关键词: Cross-regional comparison
; Index decomposition analysis
; Multiplicative decomposition
; Transportation sector
; Vehicle seating capacity
Scopus关键词: Carbon dioxide
; Efficiency
; Fuels
; Cross-regional comparison
; Divisia index method
; Index decomposition analysis
; Multiplicative decomposition
; Regional transportation
; Road transport sectors
; Transportation sector
; Transportation system
; Fuel economy
; atmospheric pollution
; automobile
; carbon emission
; comparative study
; decomposition analysis
; factor analysis
; long-term change
; road traffic
; traffic emission
; transportation
; Japan
英文摘要: The road transport sector accounted for 18.8% of global CO2 emissions in 2016. Regional efforts are indispensable for reducing automobile emissions, especially considering the diversity in regional transportation systems. Existing studies of automobile emissions have focused on nationwide transportation systems or differences in city size without considering regionality and long-term changes in vehicle occupancy. In this study, we decomposed national and regional automobile emissions in Japan between 1990 and 2015 by the Logarithmic Mean Divisia Index method. Statistical data that took vehicle occupancy into account were used. Results showed that nationwide vehicle occupancy increased (due to increased vehicle size and vehicle ownership), which increased emissions by 15.2% compared to 1990 levels. In highly populated regions, fuel efficiency decreased earlier than other regions thanks to the strengthening of ordinances regarding air pollution. In Western Japan, which includes less-populated prefectures, the rising popularity of mini-vehicles resulted in increased vehicle ownership and a decrease in occupancy but also led to improvements in fuel economy. To reduce automobile CO2 emissions, it will be essential to improve fuel efficiency and to increase vehicle occupancy through mechanisms, such as ridesharing and vehicle right sizing. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159758
Appears in Collections: 气候变化与战略
There are no files associated with this item.
作者单位: School of Environmental Science, The University of Shiga Prefecture, 2500 Hassaka, Hikone, Shiga 522-8533, Japan; Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan; E-konzal, 3-8-15-1207 Nishinakajima, Yodogawa-ku, Osaka, 532-0011, Japan
Recommended Citation:
Shiraki H.,Matsumoto K.,Shigetomi Y.,et al. Factors affecting CO2 emissions from private automobiles in Japan: The impact of vehicle occupancy[J]. Applied Energy,2020-01-01,259