Träwelling: Checking In Journeys and Building Your Own Rail Statistics

Updated: August 2026 – Träwelling is the platform where railway fans check in their own journeys and build a personal travel statistic from them. This guide shows you how the check-in works in practice, what the numbers actually mean — and why a check-in is fundamentally different from a sighting.

What is Träwelling?

Träwelling is an open-source check-in service for public transport: you sign in at the start of a journey to the exact service you’re sitting in, and the platform automatically credits you with the distance, duration and line. Adding up all your check-ins produces a personal rail statistic — kilometres travelled, travel time, most-used lines and accumulated delay.

The key point for spotters: Träwelling documents you as a traveller, not the vehicle as an object. Anyone who wants to know which carriage was used on a journey needs a different kind of data. This distinction is explained in detail in the overview of live sightings and real-time reports.

How does Träwelling differ from other railway platforms?

Several types of platform exist side by side in the German-speaking hobby scene, and they’re regularly confused. A forum collects discussions, a photo database collects photos, a check-in service collects journeys, a spotting app collects vehicle sightings.

Platform type	Example question it answers	Core unit	Relevant for spotters because …
Check-in service (Träwelling)	Where have I travelled this year?	A journey with you on board	Tour totals and route coverage become measurable
Sighting app	Which carriage ran on the line yesterday?	Vehicle sighting	Diagrams and vehicle allocations become traceable
Forum	Why is replacement stock running today?	Discussion post	Context and background knowledge from the community
Photo database	What did this vehicle look like in 2011?	Photo with metadata	Research on liveries, condition, history
Live tracking	Where is the train right now?	Current position	Planning your position before it passes

Anyone who wants to broaden the comparison will find the sighting side of this landscape in the piece on Trainspo and its alternatives, and the social side in the overview of trainspotting communities, groups and Discord servers.

How the Träwelling check-in works step by step

The process is deliberately kept short, because in practice it has to happen on the platform or in the first few minutes of the journey. The only thing that matters is catching the right departure — not the line in general, but the specific journey with its time.

What do points, kilometres and leaderboards really tell you?

Träwelling awards points for check-ins. At its core, the logic rewards two things: how far you travelled and how promptly you checked in. That’s deliberately playful — it’s a motivation mechanic, not a measure of quality.

For railway fans that means, in concrete terms:

• Kilometres are a measure of effort, not of success. A 600-kilometre journey on a standard ICE earns more points than a 40-kilometre trip behind a rare locomotive — even though the latter was the highlight of your month.
• The total delay is the most honest figure. Over months it shows which routes are actually reliable, making it the best basis for tour planning.
• Leaderboards reward consistency. Whoever checks in every S-Bahn ride comes out on top. Whoever documents only special journeys has the more interesting but shorter list.
• Line statistics expose habits. After a year it becomes very clear that you always use the same station — a good reason to head for one of the best stations for trainspotting in Germany for a change.

What Träwelling doesn’t measure

Nothing is captured of what actually makes up the hobby: the vehicle class used, carriage number, livery, condition, special working or transfer run. Anyone who needs that level of detail can’t avoid a sighting log — or decoding train numbers correctly to identify journeys unambiguously in the first place.

Check-in or sighting — which data do you need when?

In practice this means: two data trails emerge on a photo tour. The journeys in between go into the check-in, the observed vehicles into the sighting log. Anyone who keeps both in parallel can later say: “On this day I travelled this route and saw these vehicles along the way.” With only one of the two sources, half the story stays invisible.

Privacy, visibility and forwarding to social networks

A check-in is a piece of movement data. You should therefore clarify four points before your first entry:

1. Baseline profile visibility. Public, only for logged-in users or private — the default setting governs all future check-ins.
2. Visibility per journey. Your commute doesn’t need the same level as your weekend tour.
3. Automatic forwarding. Links to social networks post check-ins without asking first. That’s handy for tour reports and awkward for your daily commute.
4. API and third-party clients. Because the project is open, additional apps exist. Check what permissions you’re giving each client.

How to build Träwelling into a real spotting routine

The combination works best when both steps are tied to the same habit: board → check in → note the vehicle number.

• Before the tour: check connections, plan changes realistically. The right departure data can be found via regional transport authorities and their live departures.
• During the journey: set the check-in, then log the vehicle number. For long-distance trains it helps to track the train number via the DB enquiry to match journey and vehicle cleanly afterwards.
• During a connection at a station: take in the trains passing through. Anyone who wants to know what’s coming next uses live tracking for ICE journeys.
• After the tour: check your statistics, add notes, take open questions to a forum. For detail questions on vehicle classes and workings, a classic railway forum is still the best place to go, supplemented by research in the Drehscheibe Online guide.

Common mistakes with the Träwelling check-in

• Choosing the wrong departure. Two journeys on the same line appear close together in the list. Anyone who picks the wrong one distorts distance, time and delay — and usually never notices.
• Forgetting to correct the destination stop. If you spontaneously get off earlier, the check-in stays too long. Your annual total then looks better than it really is.
• Treating rail replacement service like the regular service. If a bus runs instead of the train, the journey often doesn’t exist in the timetable in the expected form. A note in the comment field is more valuable here than a forced check-in.
• Posting everything publicly. Anyone who leaves forwarding to social networks switched on also sends out Tuesday morning’s doctor’s appointment.
• Confusing a check-in with a sighting. The most common disappointment: after a year of diligent checking in, you still can’t say which vehicle class you caught how often. That needs a separate vehicle log.
• Making points the goal. The leaderboard rewards frequent travellers. The hobby rewards attentiveness. The two only coincide by chance.

Conclusion

Träwelling closes a gap that many railway fans long filled with notebooks and spreadsheets: the clean, automatic documentation of their own journeys. The statistics are more valuable here than the leaderboard — the delay history of individual routes in particular says more about reality than any timetable. What the service deliberately doesn’t do is the vehicle level. And that’s exactly where spotting begins.