Algorithmic Analysis of GTFS-RT vehicle position accuracy
Geophysics
2025-06-10 v1
Abstract
This paper presents three novel algorithms for calculating geodesic intersections on an ellipsoid. These algorithms are applied in a case study analyzing real-time transit data in California to assess vehicle position drift. The analysis reveals that while certain data anomalies can be corrected, large-scale discrepancies persist. The paper concludes by proposing a set of practical solutions that can be implemented by either data producers or consumers to significantly improve positional accuracy.
Cite
@article{arxiv.2506.06479,
title = {Algorithmic Analysis of GTFS-RT vehicle position accuracy},
author = {Joshua Wong},
journal= {arXiv preprint arXiv:2506.06479},
year = {2025}
}