Key takeaways
- WINK is an acronym: Wandelbarer Innovativer Nahverkehrs-Kurzzug – the name describes the concept completely.
- Kurzzug means short unit: two vehicle sections, designed for lines with modest passenger numbers.
- Wandelbar refers to the drive: the design is built so the drive concept can be adapted.
- Don't confuse it with the GTW: the WINK has no separate drive module at the centre of the vehicle.
- Operators and service areas change with service contracts – check the current status.
Contents
Fact file
| Vehicle type | Short regional multiple unit for lines without continuous overhead line |
|---|---|
| Meaning of the abbreviation | WINK = Wandelbarer Innovativer Nahverkehrs-Kurzzug (convertible innovative short-distance short train) |
| Manufacturer | Stadler |
| Construction | short, two-part multiple unit |
| Operator in the Netherlands | Arriva |
| Drive concept | designed for convertibility; equipment for battery operation is part of the concept |
Identifying features
Is this really the class in front of you?
- Very short unit made of two vehicle sections – noticeably more compact than classic regional multiple units
- Modern, smooth-surfaced Stadler design language with large window areas
- Low entry with wide doors in the middle section
- Equipment housings on the roof instead of a separate drive module
- No continuous pantograph operation as with pure electric multiple units
- UIC number with country code 84 for Dutch registration
Updated: August 2026 – A strikingly short, modern multiple unit on a Dutch regional line: that’s the Stadler WINK, which Arriva runs in regional service. The name is an acronym and describes the vehicle as precisely as type designations rarely do. This page unpacks it, shows the identifying features, and explains why short trains are gaining importance in regional service.
Documenting modern regional multiple units
Number, operator, date – for vehicles undergoing technical change, the snapshot is what's valuable.
What is the Arriva WINK?
The WINK is a short regional multiple unit from manufacturer Stadler. In the Netherlands, Arriva runs vehicles of this design on regional lines that aren’t continuously electrified. The unit consists of two vehicle sections, making it noticeably more compact than most regional multiple units.
That shortness is exactly the point. On lines with modest passenger numbers, a long train isn’t worthwhile; a short train running frequently, on the other hand, carries more passengers than a long one running rarely. The WINK is therefore less a technical answer than a transport-planning one.
What the abbreviation WINK means
Unlike with most vehicle designations, you don’t have to guess here. WINK stands for “Wandelbarer Innovativer Nahverkehrs-Kurzzug” (convertible innovative short-distance short train) – four terms that describe the concept completely:
- Wandelbar (convertible) refers to the drive concept. The design is built so the type of drive can be adapted – at Arriva, battery operation is part of the vehicle concept.
- Innovativ (innovative) is manufacturer language, but concretely refers to the modular design of drive and energy storage.
- Nahverkehr (short-distance transport) names the field of use: many stops, short runs.
- Kurzzug (short train) is the construction: a deliberately small unit.
This style of naming – an acronym that describes the purpose – is, incidentally, widespread, and makes identification easier once you recognise it. In the Netherlands, NS works on the same principle: SLT for Sprinter Lighttrain, SNG for Sprinter Nieuwe Generatie, VIRM for Verlengd InterRegio Materieel. The guide to identifying classes shows how to use such systems methodically.
Assess the length
Two vehicle sections, a very compact overall length. If you spot a strikingly short modern multiple unit, you're already very close to a WINK.
Check the middle of the vehicle
No separate drive module between the vehicle sections – that rules out the Stadler GTW, which differs precisely there.
Look at the roof
Equipment housings sit on the roof of the vehicle sections. On pure electric multiple units you'd instead expect a permanently used pantograph there.
Drive transition in regional transport
The WINK belongs to a vehicle generation that reflects a bigger shift: regional lines without overhead line are meant to be served without diesel drive in future. There are several routes to that, and vehicles like the WINK are deliberately built to be able to go through the change.
For you as an observer, this is interesting for two reasons. First, the outward appearance of such vehicles changes as a result: where radiator systems and exhaust routing used to define the roof, energy storage and charging equipment now take their place. Second, documentary moments arise that won’t repeat. A vehicle in its pre-conversion state is a subject that won’t exist in that form later. Just how far apart vehicle generations can be is shown in the same part of the country by the Museumsbahn S.T.A.R. with its preserved diesel railcars.
Anyone who records sightings with date and technical state builds a chronicle that’s worth considerably more than a plain list. The guide to keeping a sighting log shows how to structure one.
Restraint with predictions matters here. Conversion programmes slip, authorisations take time, service contracts shift the boundary conditions. What applies to one vehicle at a given moment can’t therefore be applied to the whole series. Note what you’ve seen – not what’s supposed to apply soon. That distinction is exactly what turns a spotter’s archive into a usable source later on.
Where it fits into railway operations
| Observation location | Chance of a sighting | Why |
|---|---|---|
| Dutch regional lines without overhead line | high | core operating area of the design |
| Interchange stations with the electrified network | high | system changeover with scheduled standing times |
| Electrified main routes | low | NS electric multiple units run there |
| German inland lines | open | depends on authorisation and service contract, not on the electrification system |
| Depots and stabling sidings | – | private land, viewable only from outside |
Deployment, operator and technical state change
Regional services are put out to tender and re-awarded; technical conversions run in parallel. Both shift independently of each other. Check the current status shortly before a trip rather than relying on older overviews.
From the same manufacturer, but with a completely different concept, is the Arriva GTW with its central drive module. As a comparison with another Dutch regional railcar, the Connexxion Protos is worth a look; what a modern electric multiple unit looks like in the same country is shown by the NS FLIRT in R-net service.
Don't miss conversions
Community sightings show early when something changes in the fleet – often faster than official announcements.
Spotting and photography
Short multiple units are photographically pleasant: they fit fully into frame even at tight stations. What they lack, though, is the impact of longer trains – so the shot has to work differently.
Show the compactness
A side view with some surroundings makes clear just how short the vehicle really is. A tight crop throws away exactly that information.
Capture the roof area
The equipment on the roof tells you the current state of fitting-out. A slightly elevated, publicly accessible vantage point helps.
Look for two coupled units
When two short trains run together, the modular principle becomes visible – a far more telling shot than the single unit.
Secure the number
On uniformly liveried regional fleets, the vehicle number is the only unambiguous identifier.
How the full vehicle number is structured and what the country code tells you is explained in the article on the UIC number and its check digit.
Safety at small stations
At regional stops, tracks often look harmless – that's deceptive. Stay behind the platform edge, don't enter operational areas, and expect trains from either direction on single-track lines.
Common mix-ups
It points to a WINK if …
- the unit is very short and consists of two vehicle sections
- no separate drive module sits at the centre of the vehicle
- the design language looks modern and smooth-surfaced
- the vehicle runs on a regional line without continuous overhead line
Look more closely if …
- two units are coupled and the train looks longer as a result
- a different operator livery changes the proportions
- you only see the vehicle head-on
It isn't a WINK if …
- a short drive module sits between the vehicle sections – then it's a GTW
- the train consists of four or more vehicle sections
- it's double-decked or used in long-distance service
Verdict
The WINK is a vehicle whose name does the work for you: Wandelbarer Innovativer Nahverkehrs-Kurzzug describes purpose, size and design idea in one term. For identification, the striking shortness and a look at the middle of the vehicle – where the related GTW carries its drive module – are enough. And because a lot is currently moving on the drive concept, every dated sighting is doubly worthwhile.
In short
A very short two-part unit without a central drive module, modern Stadler design language, regional service away from overhead line: that's the WINK. Note number, operator and technical state – all three are subject to change.
A chronicle rather than a list
When vehicles change technically, your logbook becomes the source. Traintrack makes recording it a matter of seconds.
Summary
- The WINK stands for a vehicle type that stays deliberately small while being flexible in its drive.
- Its acronym explains purpose and design idea in four words – unusually clear for a type designation.
- For identification, short length, design language and the absence of a central drive module are enough.
- Because regional services are regularly re-awarded, operator and date belong in every sighting.
Frequently asked questions
What does WINK stand for?
WINK is an acronym from manufacturer Stadler and stands for Wandelbarer Innovativer Nahverkehrs-Kurzzug (convertible innovative short-distance short train). The name describes the concept unusually precisely: a short vehicle for local transport whose drive concept is designed to be adaptable. Unlike with many type designations, you don't have to look anything up here – the name explains itself.
How many vehicle sections does a WINK have?
The WINK is a short, two-part multiple unit. That's exactly its purpose: on lines with modest passenger numbers, a long train isn't economical, but a very short one is just right. For greater capacity, several units can be coupled together instead of running an oversized train on every service.
Does the WINK run on diesel or battery power?
The concept is deliberately designed to be convertible – the letter W in the name points to exactly that. At Arriva in the Netherlands, the switch to battery operation is part of the vehicle concept. Which state individual units are in changes with conversion progress, so check the current status rather than relying on older information.
How do I tell the WINK and the GTW apart?
By the construction. The GTW has a separate drive module at the centre of the vehicle between two unpowered vehicle sections – an instantly visible feature. The WINK is a continuous, compact two-part unit without this middle section. A glance at the middle of the vehicle is enough to tell them apart.
Why are trains built this short?
Because capacity costs money. On regional lines with moderate passenger numbers, a short train running frequently is more economical than a long train running hourly – and more attractive for passengers. Vehicle size is therefore not a technical decision but one of transport planning.
Can I see the WINK in Germany?
The Dutch vehicles are authorised for their operating network; whether and where they run across the border depends on authorisation and service contract and can change. Since this isn't a purely overhead-line vehicle, the electrification system isn't the limiting factor here – unlike with the NS electric multiple units.
Who is Arriva?
Arriva is a transport operator that runs regional services in the Netherlands. However, the operator tells you nothing about the design: service contracts are put out to tender and regularly re-awarded. Vehicles can change operator and livery in the process without anything changing technically.
What belongs in a solid sighting record?
Vehicle number, type, operator, location and date – and for vehicles under conversion, additionally the recognisable technical state. Especially with a concept built for convertibility, this documents a snapshot that can't be reconstructed later.
Log your sighting of the Arriva WINK (Stadler)
Date, location and vehicle number logged in seconds – and visible to the community.
Related classes
Arriva GTW (Stadler GTW)
The Stadler GTW carries its drive in a short module right in the middle of the vehicle. The designation GTW 2/6 tells you exactly how many axles are powered.
EMUConnexxion Protos
The Protos is a rare small-series multiple unit that ran for Connexxion on the Valleilijn. Here's how to place it and how to document it.
EMUNS FLIRT (R-net)
The NS FLIRT runs in the eye-catching R-net colours on Dutch local services. What's behind both names, and how to recognise the Stadler multiple unit.
Who is behind it
Groups, brands, manufacturers and operators – who owns whom and how to recognise them out in the field.
Arriva
Arriva runs regional services in several European countries and belonged to Deutsche Bahn for a time. The group had to give up its German activities in the process – yet it's precisely a German train name that still carries the group's name today.
Heritage railwayMuseumsbahn S.T.A.R.
The Museumsbahn S.T.A.R. in the province of Groningen differs from most heritage railways: it runs between Stadskanaal and Veendam to a genuine timetable and meets the main network there. That makes it less an excursion attraction and more a preserved branch-line operation.
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