Abstract
The underground environment has different characteristics from the above-ground space. An in-depth understanding of the user perception towards the underground space is essential for constructing a human-friendly underground space. However, research on the requirements of underground space from the user’s perspective is lacking. To fill this knowledge gap, the evaluation indexes of the user perception of underground space (UPUS) were constructed in this study on the basis of principal component analysis and the information entropy method, and the fuzzy comprehensive evaluation method was used to assess the UPUS of the Xinjiekou underground complex in China. Then, the advantages and disadvantages of the Xinjiekou underground complex were analysed using importance-performance analysis. Results indicate that the UPUS is multidimensional and can be evaluated from eight aspects: space connectivity and positioning, physical environment, convenience, safety, facility, landscape, application of smart technology and environmental diversity. The findings shed light on the theoretical investigation and practical construction of underground spaces in urban areas.
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