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research report | October 2025

research report | June 2025

Avipsa Roy and Ghangshin Lee (2025) Spatial analysis of bicycling ridership patterns from bias-corrected crowdsourced data. Final Report PSR-22-24-TO 069. PSR / ITS-Irvine.

published journal article | October 2025

published journal article | August 2023

Trisalyn A. Nelson, Colin Ferster, Avipsa Roy and Meghan Winters (2023) “Bicycle streetscapes: a data driven approach to mapping streets based on bicycle usage”, International Journal of Sustainable Transportation, 17(8), pp. 931–941.

conference paper | October 2025

conference paper | November 2021

Mankin Law and Avipsa Roy (2021) “A geospatial data fusion framework to quantify variations in electric vehicle charging demand”, in Proceedings of the 4th ACM SIGSPATIAL International Workshop on Advances in Resilient and Intelligent Cities. New York, NY, USA: Association for Computing Machinery (ARIC '21), pp. 23–26.

published journal article | October 2025

published journal article | January 2022

Avipsa Roy, Daniel Fuller, Trisalyn Nelson and Peter Kedron (2022) “Assessing the role of geographic context in transportation mode detection from GPS data”, Journal of transport geography, 100, p. 103330.

published journal article | October 2025

published journal article | November 2022

Avipsa Roy and Bandana Kar (2022) “Effect of Social Vulnerability on Taxi Trip Times during Hurricane Sandy”, Findings [Preprint].

Preprint Journal Article | October 2025

Preprint Journal Article | January 2025

Sinjini Mitra, Anuj Srivastava, Avipsa Roy and Pavan Turaga (2025) “Graph Network Modeling Techniques for Visualizing Human Mobility Patterns”. arXiv.

other | October 2025

other | August 2023

Story Map: Examining Spatial Disparities in Electric Vehicle Charging Station Placements Using Machine Learning

Avipsa Roy

published journal article | October 2025

published journal article | April 2021

Trisalyn Nelson, Avipsa Roy, Colin Ferster, Jaimy Fischer, Vanessa Brum-Bastos, Karen Laberee, Hanchen Yu and Meghan Winters (2021) “Generalized model for mapping bicycle ridership with crowdsourced data”, Transportation Research Part C: Emerging Technologies, 125, p. 102981.

published journal article | October 2025

published journal article | January 2023

Avipsa Roy, Trisalyn Nelson and Pavan Turaga (2023) “Functional data analysis approach for mapping change in time series: A case study using bicycle ridership patterns”, Transportation Research Interdisciplinary Perspectives, 17, p. 100752.

conference paper | October 2025

conference paper | January 2023

Avipsa Roy and Mankin Law (2023) “Spatial Equity of Electric Vehicle Charging Station Placements in Orange County, CA”. 102nd Transportation Research Board Annual Meeting 2023.

published journal article | October 2025

published journal article | August 2022

Avipsa Roy and Mankin Law (2022) “Examining spatial disparities in electric vehicle charging station placements using machine learning”, Sustainable Cities and Society, 83, p. 103978.

published journal article | October 2025

published journal article | August 2024

Shengxiang Jin, Huixin Zheng, Nicholas Marantz and Avipsa Roy (2024) “Understanding the effects of socioeconomic factors on housing price appreciation using explainable AI”, Applied Geography, 169, p. 103339.

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