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(接上期)六、经验借鉴6.3实现地下利用效率最大化法国城市地下空间开发利用发展至今,在选址、规划、建设等方面的综合效益评价日益成熟和完善,人口规模、产业需求、城市定位等成为合理确定地下空间的用途与规模的重要因素,进而避免地下工程使用效益低下,或建成后长期闲置不用而造成城市空间的浪费。因此,需要结合周边的人口与产业需求合理确定地下空间的合理用途与规模(图1、2)。6.4运用地下城市综合体保护城市历史地区由于欧洲城市人口密度一般较小,用地紧缺情况并不十分突出,
(Continued) VI. Lessons Learned 6.3 Maximizing the Utilization Efficiency of Underground Utilities Up to now, the comprehensive benefit evaluation in site selection, planning and construction has been increasingly mature and perfected. The population scale, industrial demand and urban orientation Have become an important factor for reasonably determining the use and size of underground space and thus avoid the inefficient use of underground construction projects or the waste of urban space caused by long-term idle construction. Therefore, the rational use and scale of underground space needs to be rationally determined in the light of the needs of the surrounding population and industry (Figure 1 and 2). 6.4 The use of underground city complexes to protect the historical areas of the city Due to the generally small population density in European cities, land shortage is not very prominent,