CO<sub>2</sub> Emission Efficiency Analysis of Rail-Water Intermodal Transport: A Novel Network DEA Model
How to evaluate the carbon emission efficiency of multimodal transport is an important issue of public concern, and this article attempts to solve it with a network data envelopment analysis (DEA) model. DEA is a method to evaluate the efficiency of homogeneous decision-making units (DMUs). First, t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/10/9/1200 |
| _version_ | 1827659996427452416 |
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| author | Weipan Zhang Xianhua Wu Ji Guo |
| author_facet | Weipan Zhang Xianhua Wu Ji Guo |
| author_sort | Weipan Zhang |
| collection | DOAJ |
| description | How to evaluate the carbon emission efficiency of multimodal transport is an important issue of public concern, and this article attempts to solve it with a network data envelopment analysis (DEA) model. DEA is a method to evaluate the efficiency of homogeneous decision-making units (DMUs). First, this article studies the efficiency decomposition and efficiency aggregation of the general network structure for DEA model. In efficiency decomposition, the relationship between system efficiency and division efficiency is discussed; whereas in efficiency aggregation, the division tendency brought about by the definition of weights is analyzed. Then, a reasonable and single compromise solution to division efficiency scores is investigated while the system efficiency remains optimal. Finally, a two-stage network DEA model of rail-water intermodal transport is established with carbon dioxide (CO<sub>2</sub>) emissions as an undesirable output. Based on this model, the rail-water intermodal transport efficiencies of 14 ports in China in 2015 are evaluated by the methods of efficiency decomposition, efficiency aggregation, and non-cooperation. The results show that Rizhao Port, Tangshan Port, Nanjing Port, and Zhuhai Port have set an example to other ports. Qinhuangdao Port, Ningbo-Zhoushan Port, Guangzhou Port, and Beiliang Port need to improve the efficiency of railway transportation. Beibu Gulf port, Zhanjiang Port, Dalian Port, Lianyungang Port, Yantai Port, and Yichang Port should optimize their intermodal system. In addition, Yantai Port and Yichang Port urgently need to improve the port efficiency in low-carbon operation. The network DEA model constructed in this article can be further applied to the efficiency evaluation of multi-link supply chains, and the empirical results can provide a reference for the efficiency evaluation of ports in China. |
| first_indexed | 2024-03-09T23:33:02Z |
| format | Article |
| id | doaj.art-4e5532e74639464d8cd84a9511acc6be |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-09T23:33:02Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-4e5532e74639464d8cd84a9511acc6be2023-11-23T17:06:22ZengMDPI AGJournal of Marine Science and Engineering2077-13122022-08-01109120010.3390/jmse10091200CO<sub>2</sub> Emission Efficiency Analysis of Rail-Water Intermodal Transport: A Novel Network DEA ModelWeipan Zhang0Xianhua Wu1Ji Guo2School of Economics and Management, Shanghai Maritime University, Shanghai 201306, ChinaSchool of Economics and Management, Shanghai Maritime University, Shanghai 201306, ChinaSchool of Economics and Management, Shanghai Maritime University, Shanghai 201306, ChinaHow to evaluate the carbon emission efficiency of multimodal transport is an important issue of public concern, and this article attempts to solve it with a network data envelopment analysis (DEA) model. DEA is a method to evaluate the efficiency of homogeneous decision-making units (DMUs). First, this article studies the efficiency decomposition and efficiency aggregation of the general network structure for DEA model. In efficiency decomposition, the relationship between system efficiency and division efficiency is discussed; whereas in efficiency aggregation, the division tendency brought about by the definition of weights is analyzed. Then, a reasonable and single compromise solution to division efficiency scores is investigated while the system efficiency remains optimal. Finally, a two-stage network DEA model of rail-water intermodal transport is established with carbon dioxide (CO<sub>2</sub>) emissions as an undesirable output. Based on this model, the rail-water intermodal transport efficiencies of 14 ports in China in 2015 are evaluated by the methods of efficiency decomposition, efficiency aggregation, and non-cooperation. The results show that Rizhao Port, Tangshan Port, Nanjing Port, and Zhuhai Port have set an example to other ports. Qinhuangdao Port, Ningbo-Zhoushan Port, Guangzhou Port, and Beiliang Port need to improve the efficiency of railway transportation. Beibu Gulf port, Zhanjiang Port, Dalian Port, Lianyungang Port, Yantai Port, and Yichang Port should optimize their intermodal system. In addition, Yantai Port and Yichang Port urgently need to improve the port efficiency in low-carbon operation. The network DEA model constructed in this article can be further applied to the efficiency evaluation of multi-link supply chains, and the empirical results can provide a reference for the efficiency evaluation of ports in China.https://www.mdpi.com/2077-1312/10/9/1200network DEAcarbon dioxiderail-water intermodal transportundesirable output |
| spellingShingle | Weipan Zhang Xianhua Wu Ji Guo CO<sub>2</sub> Emission Efficiency Analysis of Rail-Water Intermodal Transport: A Novel Network DEA Model Journal of Marine Science and Engineering network DEA carbon dioxide rail-water intermodal transport undesirable output |
| title | CO<sub>2</sub> Emission Efficiency Analysis of Rail-Water Intermodal Transport: A Novel Network DEA Model |
| title_full | CO<sub>2</sub> Emission Efficiency Analysis of Rail-Water Intermodal Transport: A Novel Network DEA Model |
| title_fullStr | CO<sub>2</sub> Emission Efficiency Analysis of Rail-Water Intermodal Transport: A Novel Network DEA Model |
| title_full_unstemmed | CO<sub>2</sub> Emission Efficiency Analysis of Rail-Water Intermodal Transport: A Novel Network DEA Model |
| title_short | CO<sub>2</sub> Emission Efficiency Analysis of Rail-Water Intermodal Transport: A Novel Network DEA Model |
| title_sort | co sub 2 sub emission efficiency analysis of rail water intermodal transport a novel network dea model |
| topic | network DEA carbon dioxide rail-water intermodal transport undesirable output |
| url | https://www.mdpi.com/2077-1312/10/9/1200 |
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