DataFunTalk

May 24, 2020 · Artificial Intelligence

Automatic Calibration of Road Intersection Topology Using Trajectories (CITT Framework)

This article presents the CITT framework, a three‑stage algorithm that automatically calibrates road‑intersection topology using massive GPS trajectory data, detailing preprocessing, core‑area detection via quadtree‑mean‑shift, influence‑zone calibration with direction‑weighted Frechet distance and DBSCAN, and demonstrating superior accuracy over existing methods.