Research the system.
Build the tools.

I’m Hanyang Tang, a transportation researcher and software builder at MIT. I study how people move through cities and build tools for understanding networks, testing service changes, and doing the research behind them.

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Selected work

All projects
VIGO current interface

Transit networks

VIGO

Inspect service. Test what changes.

Network inspection, journey planning, and scheduled accessibility, built around the same city model.

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VEXTA current interface

Research workspace

VEXTA

Keep the work beside the words.

Source, compiled pages, and review decisions in one local-first writing environment.

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MapEX current interface

Transit cartography

MapEX

A network, made legible.

Compile a GTFS feed into a schematic map, then refine its stations, lines, and labels in Studio.

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Research in practice

DC Student TravelReconstructing school journeys from partial records. WorldformSynthetic populations for inspectable urban models.