VIGO
An open-source platform for fast, exact transit routing, accessibility analysis, and network scenario evaluation using GTFS and OSM.
Tools for understanding and improving transportation systems.
I’m Hanyang Tang, a transportation researcher and software builder at MIT. I work on transit networks, student mobility, aviation, and software for research.
Current work
VEXTA 0.5.0
A local-first research workspace for technical writing, automatic LaTeX compilation, PDF review, and optional AI assistance.
MapEX Studio
A compiler-backed workspace for generating, checking, and editing schematic transit maps from GTFS.
DC Student Travel
Student mobility research on synthetic demand, observed bus activity, and scheduled network access.