Table 2 Data sources and components

Environment System Data

Green coverage, Air quality index, Noise levels, Surrounding building density, Road network density, Facility completeness, Spatial connectivity

Amap, OpenStreetMap, Bbike, Shenyang Meteorological Bureau

Green coverage, road network density, spatial connectivity: Q1 2025;

Air quality index: April–June 2025; Noise levels: April–June 2025;

Surrounding building density, facility completeness: Q2 2025

Static spatial data extraction (green coverage, road network density); monthly average collection (noise levels); on-site verification and spatial analysis (building density, facility completeness); network accessibility evaluation (spatial connectivity)

Value System Data

Scarcity of industrial historical resources, Integrity of heritage, Origins and testimonies of industrial history, Association with historical events and figures, Progress and impact of industrial technology, Architectural value, Artistic value of landscape features, Artistic value of style, form, shape, space, material, color, and decoration, Artistic value of overall layout, spatial structure, technical structure, and environmental facilities, Social identity and sense of belonging, Connection with social life

Semi-structured interviews, Site surveys, Expert scoring, Factory archives

Interviews: November 2024–April 2025;

Site surveys: Q2 2025;

Expert scoring: March–May 2025; Factory archives: March 2025

Expert consultation, in-depth interviews, historical document collation, on-site inspection of heritage status, two-round Delphi method for expert scoring, spatial syntax analysis

Memory System Data

Durability of memory, Accuracy of memory, Diversity of memory, Emotional memory, Continuity of memory

Semi-structured interviews, Surveys

Q2 2025

Purposive sampling questionnaire survey, stakeholder interviews, cross-verification with historical records, Likert-scale measurement of emotional attachment, and investigation of intergenerational memory transmission