Revealing urban–rural migration corridors through edge-path bundling of historical census data in Bulgaria
Year: 2025
Type: article
Abstract: This featured graphic visualises internal migration flows in Bulgaria using settlement-level census data from 1934 to 1946, highlighting how topography and local factors shaped migration and urbanisation. By combining spatial interaction models (SIMs) and edge-path bundling techniques, we reveal fine-scale migration corridors and the role of mountainous terrain in influencing mobility. The SIM approach goes beyond aggregate district analysis to provide new insights into rural depopulation and urban growth.
Institutions: University of Glasgow, University of Sheffield, Koç University
Language: English
Subfield: Demography
Field: Social Sciences
Domain: Social Sciences
Open Access status: hybrid
Estimated APC paid: $3,650
Funder: UK Research and Innovation
Awards: G3007901435, G3741620067
OpenAlex ID: W4415002350
