Heritage
corridors possess multiple values, including recreation, ecological
conservation, and cultural preservation, and serve as important carriers for
the relational conservation and adaptive reuse of historic urban areas.
Existing route planning approaches mainly rely on the geospatial analysis of
physical elements and pay limited attention to public participation. This study
proposes a heritage corridor route planning method that integrates physical
semantics and social semantics, and establishes a technical pathway combining
the Minimum Cumulative Resistance (MCR) model and social network analysis to
balance spatial continuity and accessibility with public attention and
perceptual preferences.First, based on four categories of functional nodes-heritage
sites, park green spaces, leisure and recreation areas, and cultural facilities-resource
points that are closely related to traditional heritage and receive high public
attention are selected according to heritage protection level, spatial
distance, and online word-frequency characteristics. Second, a suitability
evaluation system is constructed from three dimensions: historical culture,
functional support, and spatial environment. A comprehensive resistance surface
is generated through GIS-based spatial analysis, and preliminary
physical-semantic routes are derived using the MCR model based on the selected
resource points. Third, a co-occurrence matrix is built from digital footprint
data to generate a social network structure and identify semantic clusters,
which are then spatially mapped in GIS to form preliminary social-semantic
routes. Finally, the physical-semantic and social-semantic routes are adjusted
and overlaid to obtain the final planned corridors.The application of the
proposed method to the historic urban area of Guangzhou shows that, compared
with existing heritage trails and MCR-based routes relying solely on physical
geographic factors, the corridor network incorporating social semantics
demonstrates improvements in the number of nodes, network circuitry,
connectivity, and structural complexity. While maintaining basic accessibility,
the resulting routes better reflect actual public use paths and preferred
nodes.