Grey relation analysis of motor vehicular energy consumption in Taiwan

被引:56
|
作者
Lu, I. J. [1 ]
Lin, Sue J. [1 ,2 ]
Lewis, Charles [3 ]
机构
[1] Natl Cheng Kung Univ, Dept Environm Engn, Tainan 701, Taiwan
[2] Natl Cheng Kung Univ, Sustainable Environm Res Ctr, Tainan 701, Taiwan
[3] Natl Cheng Kung Univ, Dept Resources Engn, Tainan 701, Taiwan
关键词
grey relation analysis; OECD decoupling index; vehicular fuel consumption;
D O I
10.1016/j.enpol.2008.03.015
中图分类号
F [经济];
学科分类号
02 ;
摘要
Grey relation analysis (GRA) was utilized in this study to capture the dynamic characteristics of different factors in the transportation system during their development process and to evaluate the relative influence of the fuel price, the gross domestic product, the number of motor vehicles and the vehicle kilometers of travel (VKT) per energy increase. Furthermore, results from this method were then compared with the OECD decoupling index. This comparison revealed that the steady growth of economic development was strongly correlated with vehicular fuel consumption. The relation grade of 0.967 implies that the increase in the number of passenger cars was another important factor for energy increase. As for the motorcycles, the relative influence of VKT was insignificant, and the positive relationship to G(FK) indicated that the performance of vehicular energy efficiency has improved in recent years. In comparison to the other factors, the contribution of fuel price was obscure. Additionally, the analysis of decoupling effects also yielded similar results to those of GRA. The coupling index between economic growth and fuel price was observed for passenger cars and motorcycles, while the VKT was relatively decoupled. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2556 / 2561
页数:6
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