ISPRS-Annals ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences ISPRS-Annals ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci. 2194-9050 Copernicus Publications Göttingen, Germany 10.5194/isprs-annals-X-4-W7-2025-33-2025 Analysis of Location-based Accessibility using a Mobile Phone-Based Origin-Destination Matrix and a Land Use Map Gong Suxia 1 Saadi Ismaïl 2 Teller Jacques 1 Cools Mario 1 3 LEMA Research Group, Department of Urban and Environmental Engineering (UEE), University of Liège, Liège, Belgium MRC Epidemiology Unit, School of Clinical Medicine, University of Cambridge, Cambridge, United Kingdom Faculty of Business Economics, Hasselt University, Diepenbeek, Belgium 19 09 2025 X-4/W7-2025 33 41 Copyright: © 2025 Suxia Gong et al. 2025 This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/ This article is available from https://isprs-annals.copernicus.org/articles/X-4-W7-2025/33/2025/isprs-annals-X-4-W7-2025-33-2025.html The full text article is available as a PDF file from https://isprs-annals.copernicus.org/articles/X-4-W7-2025/33/2025/isprs-annals-X-4-W7-2025-33-2025.pdf

As dynamic accessibility depends on the interplay of opportunities and travel impedance, available General Transit Feed Specification data and mobile phone data offer new opportunities to enhance the temporal sensitivity of accessibility. This paper utilises a mobile phone-based origin-destination matrix and dynamic travel time via public transport to explore spatial and temporal patterns of accessibility measures. Four scenarios are constructed and compared to illustrate the relative accessibility. The results show that the impact of the public transport system changes progressively depending on the cut-off time considered, and average accessibility gains could vary four-fold between the city centre and suburban zones. Besides, the exploration of the relationship between land use, mobile phone-based attractiveness, and dynamic accessibility underlines the time-dependent effect of land use. Future research should focus on the development of advanced accessibility-based travel models.