Evaluation Method and Application of Ecological Sensitivity of Intercity Railway Network Planning

Bingtong Wan,Jianchang Zhao,Xueying Bao

doi:10.3390/su14020804

Abstract

In the planning stage of the intercity railway network, the ecological sensitivity evaluation of the planning scheme is not only the key content to explore the ecological environmental rationality of the planning scheme but also a scientific means to promote the sustainable development of intercity railway networks. The purpose of this study is to establish an evaluation method that can quantitatively evaluate the ecological sensitivity of intercity railway network planning to put forwards targeted optimization and adjustment suggestions for the planning scheme. Taking the intercity railway network planning of Guizhou Province as an example, its ecological sensitivity is predicted and evaluated. Six types of ecologically sensitive areas were selected as ecological sensitivity evaluation factors, including protected areas, drinking water sources, geological disaster-prone areas, soil erosion areas, cultivated land resource distribution areas and coal resource distribution areas. Based on the GIS overlay method, the quantitative measurement methods of each evaluation factor are established in turn, and the single factor sensitivity evaluation index is obtained. In addition, the weighted superposition model is used to quantitatively calculate the ecological sensitivity of the planned lines of the intercity railway network in Guizhou Province. Finally, the short board factor of each planned line is obtained, and targeted optimization and adjustment suggestions are put forwards. The research content of this paper can provide a theoretical reference for the practical evaluation of the ecological sensitivity of intercity railway network planning.

Highlights

The construction of intercity railway networks can greatly shorten intercity travel times and promote regional economic development
Compared to traditional project environmental impact assessment (EIA), planning environmental impact assessment has realized the transformation and innovation from the traditional decision-making mode based on economic benefits to the new decision-making mode oriented by sustainable development
According to the Technical Guidelines for Planning Environmental Impact Assessment (2020), evaluation of ecological sensitivity of planning schemes in terms of coordination between planning layout and local ecologically sensitive areas is the key content of EIA of transportation

Summary

Introduction

The construction of intercity railway networks can greatly shorten intercity travel times and promote regional economic development. That is, when preparing the draft plan of an intercity railway network, it will conduct an environmental impact assessment on its schemes and alternatives and apply the evaluation conclusions and suggestions to decision making. This will prevent the huge impact of planning implementation on the regional ecological environment at the source of decision making and promote the sustainable development of intercity railway networks. According to the Technical Guidelines for Planning Environmental Impact Assessment (2020), evaluation of ecological sensitivity of planning schemes in terms of coordination between planning layout and local ecologically sensitive areas is the key content of EIA of transportation

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Discussion

Conclusion