TransitFlow // City Onboarding Studio

Data Ingestion & Cleaning Engine

Drop local GTFS files or choose a world city preset. All validation runs securely inside your browser.

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DRAG & DROP GTFS OR GEOJSON FILES HERE

Supports stops.txt, routes.txt, trips.txt, tracks.geojson (or click to browse)

HEALTH DIAGNOSTIC ADVISOR

1. City Profile & Quick Presets

Load Template Preset:

City Identifier (Slug):

Display Name:

Country:

Timezone:

2. Geographic Bounding Box (WGS84 Degrees)

Min Longitude (West):

Min Latitude (South):

Max Longitude (East):

Max Latitude (North):

3. Conformal Metric Projection (Auto-Detected) EPSG:32630 (UTM Zone 30N)

TransitFlow automatically computes the local Universal Transverse Mercator (UTM) zone from bounding box longitude, guaranteeing zero distance distortion and uniform velocities in metric meters.

4. OpenStreetMap Overpass Extraction Query

Generated Specification & CLI Runbook

Save the generated YAML specification into configs/<city>.yml to activate the pipeline.

CLI Pipeline Execution Sequence

1. Ingest OSM Geometry & GTFS Timetable:

transitflow download london

2. Validate Network Topology & Build Graph:

transitflow build london

3. Render Cinematic MP4 Video (H.264):

transitflow animate london --duration 15 --fps 30