[Medformatik]

Summary

Follow-up to #730. A place's departure board links stops by name, and the rule linked far too much. A stop within 1 km counted when it shared one "informative" word with the place. So "Köln Messe/Deutz" took in every Deutz stop: Suevenstraße, Koelnmesse, Im Rheinpark, Deutzer Freiheit, the Technische Hochschule. "Köln-Mülheim" took in most of Mülheim, and Stuttgart Stadtmitte took in Stuttgart Hauptbahnhof, 990 m away.

New rule. A stop within 1 km links when its name is the place's name: the same words in any order, after normalising spelling. Either name may leave out its town:

• a leading town: "Köln Neumarkt" and "Neumarkt", "Messe/Deutz" and "Köln Messe/Deutz";
• a town set apart by a comma: "Marienplatz, München".

Beyond that, a stop links only when its name says it is the station's own stop and contains the place's name: "Köln Dom/Hbf" and "Köln Breslauer Platz/Hbf" for Köln Hauptbahnhof, and "Köln Bf Deutz/Messe LANXESS arena" for Köln Messe/Deutz. Sharing a district or a town no longer links.

Details:

• Spellings:
  • "Hbf", "Bf", "Bhf" and "Hauptbf" are read as the words they abbreviate.
  • "-str." is read as "-straße".
  • "Ostbahnhof" is read as "Ost", so "Ostbahnhof, München" is München Ost.
  • Bracketed parts, platform designations and S/U prefixes are ignored, as the board's stop labels already ignore them.
• Places named like a town (Brühl, Bergisch Gladbach, Garmisch-Partenkirchen):
  • In "Brühl, Mitte" or "Rathaus, Garmisch-Partenkirchen", either part could be the town. So a comma isn't read as setting a town apart once at least three nearby stops begin with the place's name ("Brühl Mitte", "Brühl Nord", …).
  • The station itself still links ("Brühl Bf").

Before (main's rule): departures from Köln Deutz Im Rheinpark and Koelnmesse, which aren't part of the station.

After: every departure leaves from the station or its "Bf Deutz/Messe" stop.

Both views come from a local web build against a local proxy (not committed):

• Stop candidates: the proxy used the candidates collected live for the place and linked them with main's or this branch's rule.
• Departures: they came from openmapx.com, or straight from the HAFAS providers.

With main's rule the board had 643 departures, about half from those other stops; with this branch's it had 266. The "before" capture also shows the "Some departures may be missing" warning. The proxy didn't log per-stop lookups, so I can't say which of its extra stops failed to load.

Checked across Germany.

• What ran: a local probe collected live stop-search candidates for 86 OSM stations and stops in 30 towns and cities, across Germany and the Ruhr. It used Transitous and the regional HAFAS providers with fix(transit): warn of missing departures only for sources that leave gaps #730's fixes. Both rules then linked the same candidates.
• Totals: 1,260 links on main, 945 with this branch.
• Removed, wrong:
  • Köln-Mülheim: 27 → 6 (Wiener Platz, Montanusstraße, Kieler Straße, …).
  • Köln-Ehrenfeld: 39 street stops.
  • Bonn-Beuel: 58 → 11.
  • Heidelberg Hbf: 31 → 10 (Czernybrücke, Stadtbücherei, …).
  • Bad Homburg: 13 town stops.
  • Hamburg-Harburg: Harburg Rathaus (930 m).
  • Mannheim Hbf: Paradeplatz and Wasserturm.
  • Dammtor: the city entry "HAMBURG".
• Now linked, right:
  • "S+U Friedrichstr. Bhf", "S Südkreuz Bhf/Ostseite", the "S+U Alexanderplatz Bhf/…" stops.
  • Aachen Westbahnhof, "Südbahnhof/Mörfelder Landstraße" for Frankfurt Süd, "Max-Ernst-Museum/Brühl Bf".
• Lost, accepted ("better too little than too much"):
  • Bus stops beside a station whose name doesn't say they belong to it, such as "Köln Bf Deutz/Messeplatz", "U Hermannplatz/Sonnenallee" and "S+U Zoologischer Garten/Jebensstr.".
  • RMV's "Heidelberg Bahnhof" for Heidelberg Hauptbahnhof.
  • Hauptbahnhof stops up to 540 m away still link when their name says Hauptbahnhof, such as Wuppertal's "Hauptbahnhof Historische Stadthalle".
• Not covered: DB's own stop search (db-vendo) answered this machine with OPS_BLOCKED, so its spellings weren't in the probe. They follow the same patterns as the DELFI names Transitous returns.

Validation:

• New tests cover:

  • the station under each source's spelling;
  • its own stops;
  • district and town stops not linking;
  • towns with and without a comma;
  • side-of-town stations;
  • main-station stops;
  • town-named places;
  • places sharing a last word;
  • the 1 km limit.

  Four fail against main's code. Two existing fixtures relied on the loose rule and now use names that link: the stop "Aachen Central" for the place "Aachen Hbf", and a bus stop "Köln Messe/Deutz Ottoplatz".

• Full Vitest run: 24,554 passed, 0 failed. check-types passes for apps/api; pnpm lint (Biome, Prettier, translations) is clean.

• Not run locally: the docs build. One paragraph of public-transit.md changed and passes Prettier.

Release and upgrade impact

Product impact: ordinary
No package release: neither @openmapx/extension-cli nor @openmapx/extension-contracts depends on the transit integration. Built with and without this change, their JavaScript output is byte-identical (42 files). The only differing files are integration.d.ts and licensing-schema.d.ts, whose union members come out in a different order between builds of the same source. Repeated builds of this branch alone show the same variation.