Route Selection for the Extension Line of Pinglu Canal: A Comparative Study

Honglin Feng, Zhefei Jin, Xiao Chu (), Weihan Wang and Haiyuan Yao
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Honglin Feng: Transport Planning and Research Institute, Ministry of Transport, Beijing 100028, China
Zhefei Jin: Transport Planning and Research Institute, Ministry of Transport, Beijing 100028, China
Xiao Chu: School of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan 430063, China
Weihan Wang: State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
Haiyuan Yao: Transport Planning and Research Institute, Ministry of Transport, Beijing 100028, China

Land, 2025, vol. 14, issue 6, 1-20

Abstract: The Pinglu Canal, China’s first strategic river–sea transport canal, connects the inland waterway trunk line with the Beibu Gulf International Hub Port, while a diversion channel extension is needed for port development. This study proposed a comparative study of extension routes to Fangchenggang through qualitative analysis and quantitative modeling. Eventually, Route 4 is selected considering the engineering feasibility, ecological impact, and hydrodynamic modeling. It yields the lowest engineering cost, effectively bypasses the ecological protection red lines and cultural heritage areas, and only intersects the controllable ecological restoration zones in a limited manner. Hydrodynamic results show moderate tidal velocities, with maximum rising and falling speeds of 0.72–0.80 m/s and 0.72–0.86 m/s, respectively. The sediment deposition intensity (0.06 m/a) and total volume (58,600 m 3 /a) are generally lower than the other alternatives. The comparative study shares useful insights into canal route selection and would support the sustainable development of the logistics transportation system in Southwest China.

Keywords: canal planning; route selection; hydrodynamic modeling; Pinglu Canal (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2025
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