Amid urban expansion, historic districts face challenges such as declining vitality and deteriorating spatial quality. Using the streets of Xi’an’s historical and cultural district as examples, this research utilizes multisource data, including points of interest (POIs), street view images, and Baidu heatmaps, alongside analytical techniques such as machine learning. This study explores the determinants of street vitality from the dual perspectives of its external manifestation and spatial carriers. A quantitative framework for measuring street vitality in historic districts is established, thoroughly examining the driving factors behind street vitality. Additionally, the relationship between built environment indicators and street vitality is elucidated through statistical analysis methods. The findings reveal significant, time-varying influences of these spatial carriers on human vitality, with distinct spatial distribution patterns of human activity across different times, and the significance of the influence of external representations of human vitality and various types of spatial carriers varies over time. Based on these insights, this paper proposes strategies for enhancing the vitality of historic streets, aiming to rejuvenate and sustain the diverse and dynamic energy of these districts. It provides a foundation for revitalizing the vigor of cultural heritage zones and offers strategies applicable to similar urban contexts.

The effectiveness of industrial heritage conservation relies on the collaborative efforts of multiple stakeholders. However, existing research lacks systematic exploration of stakeholders’ perception of heritage value and the pathways through which such perception translates into conservation behaviors. This study takes the Shaanxi section of the Baocheng Railway, a typical linear industrial heritage, as a case study. Based on the “Cognitive Appraisal Theory of Emotions” (CATE) theory, it examines the mechanism between heritage value perception, place identity, and heritage responsibility behavior. Through structural equation modeling (SEM) analysis of 414 questionnaire responses, the study finds that heritage value perception of the Baocheng Railway’s Shaanxi section not only significantly positively influences stakeholders’ place identity but also directly promotes the formation of heritage responsibility behavior. Among these, the perception of social value has the most pronounced impact on place identity and responsibility behavior. Furthermore, place identity plays a key mediating role between value perception and responsibility behavior. This study introduces the CATE theory into industrial heritage research, revealing the mechanism of behavior generation from the path of “cognition → emotion → behavior”. By focusing on linear industrial heritage sites, it broadens the scope of heritage research and highlights the central role of social value perception in driving conservation intentions and behaviors. The study further enriches research on heritage responsibility behavior, and the proposed theoretical model and findings can provide theoretical references for the management and conservation of industrial heritage.

With the rapid change of meta-universe technology, the digital inheritance of intangible cultural heritage ( ICH ) shows unprecedented broad prospects, and injects new vitality into the inheritance and development of ICH. Aiming at the multiple challenges in the process of digital inheritance of ICH, this paper explores in depth the specific application of meta-universe technology in ICH, and proposes a series of innovative strategies such as the digital inheritance of visual language, the construction of immersive experience, the protection of free creation and copyright, and the construction of panoramic interactive venues. These strategies provide a new perspective and practical methodology for the digital inheritance of intangible heritage, and at the same time make a positive contribution to the promotion of the continuous prosperity and innovation of intangible heritage culture. This paper is committed to providing solid theoretical support and practical guidance for the protection, inheritance and innovation of ICH, so as to help ICH culture to be revitalized in the digital era.