Product · Transit map design

MapEX Studio

A local-first planning workspace for turning GTFS rail networks into editable, compiler-backed schematic maps.

Schematic MapEX rendering of the CTA rail system — A system-scale MapEX rendering of Chicago's CTA rail network.

TypeLocal-first planner

StatusPrivate active development

DomainGTFS rail map generation

One map, one spec

MapEX Studio is a private Electron and React planner built around the existing Python compiler. The compiler turns GTFS into a schematic rail map. The Studio exposes that process for inspection and editing without adding a second map generator.

The workspace keeps one authoritative MapSpec and one displayed SVG. An edit changes the spec, then the same renderer produces the next map.

Edit loop

Run the GTFS-to-map compiler and inspect its progress in Build.
Open the generated system map through its authoritative MapSpec.
Make undoable edits while preserving a single displayed SVG.
Render edits with mapex render-spec instead of repeating GTFS generation.

Current verification

Checks cover the typed application build, application tests, generation from a WMATA GTFS feed, and rendering from MapSpec. They establish the integrated workflow for that evidence. They do not establish uniform results across every transit system; feed-specific validation is still in progress.

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