A repeatable input-to-output workflow
- 01
Provide the six-file GTFS subset plus your explicit connections, date, walk times, and delays as JSON.
- 02
The tool applies the delays to the scheduled times and evaluates each declared transfer as made or missed.
- 03
You download the scenario pack summarizing outcomes and the arithmetic behind them.
What you receive
- Per-connection made or missed result
- Slack and shortfall figures for each transfer
- A scenario pack summarizing the applied delays
Supported scope and limits
- Declared six-file GTFS subset and explicit inputs only
- Produces schedule arithmetic, not actual arrival reliability
- No route planner and no GTFS certification
- Results depend entirely on the delays and walk times you declare
Read the exact input profile and examples. Start with the supplied template; this release does not guess missing settings.
Turn your input into a checked artifact
Load the synthetic example to explore the format, or choose your own supported JSON file. Processing happens on this device. Your input is not uploaded. The first run downloads the processing engine.
Step 01
Load an input
Keep your original source. Unsupported inputs return an explanation. These workflows implement the stated mathematical or file-format checks; they do not establish physical performance, language quality or real-world reliability.
Step 02
Your generated files
| Artifact | Size | SHA-256 prefix |
|---|
Result details and file checksums
Optional offline batch kit
TransitGap automation kit
$349 one time
One-time batch automation kit: a versioned ZIP with an offline CLI runner, the TransitGap engine module, input fixtures, a verifier, and acceptance tests for generating connection delay scenarios offline. No recurring updates or support are promised.
Browser processing and result downloads above are free. The kit bundles the same core engine with an offline command-line runner, synthetic fixtures, source, checksums and acceptance tests for repeated jobs.
You pay and download on Gumroad.
Your purchase delivers the named version as a ZIP. No subscription, future updates, hosted storage or hands-on review is included. Pricing is an introductory offer experiment.
Your email app opens a draft. Do not send source files.
Inspect the synthetic example
Input and actual engine output, available before any purchase.
Example provenance: synthetic source fixture, generated and checked on 2026-09-09. The following sizes and hashes are counted from the downloadable result ZIP; they are not customer data or performance claims.
| File in example | Bytes | SHA-256 prefix |
|---|---|---|
| connections.csv | 368 | 96a2a5b1c7b9 |
| manifest.json | 1,645 | 11b5d331a4e4 |
| report.txt | 1,116 | f9cd28d26c9c |
| scenarios.json | 945 | 0b549be34f1c |
Before you start
Does this predict real delays?
No. It computes outcomes for the delays you declare; it does not model or predict actual arrival reliability.
Can it plan a route for me?
No. You supply the connections; it evaluates those transfers under your stated assumptions.
Reference material
These sources describe the surrounding formats and established tools. They do not endorse this product or prove demand for it.