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Trajectory Data Analyses for Pedestrian Space-time Activity Study
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Published on: February 25, 2013

Beyond absolute space: modeling disease dispersion and reactive actions from a multi-spatialization perspective.

Shiran Zhong1, Yujia Pan2, Ling Bian2

  • 1Department of Geography and Environment, Western University, Canada.

International Journal of Geographical Information Science : IJGIS
|June 12, 2026
PubMed
Summary

This study reveals that understanding health risks requires multiple spatializations, not just absolute locations. Perceived threats and relative spaces significantly influence disease transmission and reactive behaviors.

Keywords:
Multi-spatializationdisease dispersionreactive actions

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Area of Science:

  • Geographic Information Science (GIScience)
  • Public Health
  • Spatial Epidemiology

Background:

  • Traditional GIScience approaches often use absolute spatialization, which may oversimplify complex dynamic phenomena like disease transmission.
  • There is a growing need to incorporate multiple spatial perspectives to better understand health risks.

Purpose of the Study:

  • To investigate health risks by considering multiple spatializations: relational, relative, and mental space.
  • To estimate health risks associated with influenza-like illness symptoms in different spatial contexts.
  • To assess the influence of perceived health threats on individuals' reactive actions.

Main Methods:

  • Utilized a multi-spatialization framework including relational (home, workplaces), relative (serviceplaces), and mental (perception) spaces.
  • Employed a two-layer Bayesian network model to analyze health risks and disease transmission.
  • Applied the SHAP (SHapley Additive exPlanations) model to understand the impact of perceived threats on actions.

Main Results:

  • Relational space remains crucial for disease transmission, as confirmed by findings.
  • Relative space (serviceplaces) presented significant health risks, often exceeding those in relational space, with variations across serviceplace types.
  • Perceived health threats in mental space were found to be effective motivators for reactive health behaviors.

Conclusions:

  • A multi-spatialization approach provides a comprehensive view of health risks, integrating proximity, social relations, relative contacts, and perception.
  • This framework enhances the understanding of dynamic geographical phenomena beyond traditional spatial analysis.
  • The study's methodology can be extended to analyze various geographical phenomena in both theoretical and empirical contexts.