Key takeaways
- A control car is a coach, not a locomotive: it has a driving cab but no traction.
- Push-pull operation is the whole point: the train doesn't need to run round at the terminus, the locomotive stays where it is.
- Fastest test: driving cab present, pantograph absent – then it's a control car.
- The number gives away the vehicle class: control cars carry coach numbers, not four-digit ÖBB classes.
- CityShuttle is a product name describing the service, not a single coach type.
Contents
Fact file
| Vehicle type | Passenger coach with a driving cab, without its own traction |
|---|---|
| Product name | CityShuttle – ÖBB's product name for local push-pull services |
| Operating principle | Push-pull train: locomotive at one end, control car at the other |
| Traction | None – driving commands are transmitted to the locomotive via a control line |
| Roof equipment | No pantograph, no transformer or cooling gear on the roof |
| Numbering system | Twelve-digit coach number, not the ÖBB traction-vehicle class scheme |
| Type code letter | A small f in the type code marks a coach with a driving cab |
Identifying features
Is this really the class in front of you?
- Driving cab with a windscreen at one end, but a body shell like the other coaches
- No pantograph and no large roof-mounted equipment
- No engine noise from the vehicle when starting off – the traction is at the other end of the train
- The vehicle marking is a coach number, not a four-digit ÖBB class
- A small f appears in the type code, marking the driving cab
- Runs as part of a push-pull train with a locomotive at the other end
Updated: August 2026 – A windscreen at the front, a driving cab, but no engine noise and no pantograph: the CityShuttle control car is one of the most commonly misidentified vehicles in Austrian local rail traffic. This page explains why it has no traction, how push-pull operation works, and how to recognise it beyond doubt.
Spotted a control car? Note the coach number.
Control cars carry coach numbers instead of class designations – write them down, or the sighting stays imprecise.
What is the ÖBB CityShuttle control car?
The CityShuttle control car is a passenger coach with a driving cab but no traction of its own. It forms one end of a locomotive-hauled local train; the locomotive hangs at the other end. On mountain routes such as the Tauern Railway near Schwarzach-St. Veit you’ll therefore see the locomotive at the front on one journey and the control car at the front on the next, depending on the direction of travel. CityShuttle itself is a product name of ÖBB-Personenverkehr AG for this local service – not a vehicle type and not a class number.
This distinction regularly causes confusion. The Austrian Federal Railways designate traction vehicles with “Reihe” (class) plus a four-digit number, whose leading digit states the vehicle type: 1 for electric locomotives, 2 for diesel locomotives, 4 for electric multiple units, 5 for diesel multiple units. A control car without traction doesn’t fit this system. It’s a coach, and it’s numbered like one.
Why a control car has no traction
The answer is both economic and technical: it doesn’t need one. All the tractive effort comes from the locomotive. The control car merely provides a second workstation for the driver.
Technically this works via a control line running through the whole train. The driver sits in the control car, operates the traction controller and brake there, and their commands are transmitted electrically to the locomotive. That then pushes the train from behind.
Traction of its own in the control car would be expensive to procure, heavy, maintenance-intensive and operationally superfluous. Doing without it isn’t a cost-cutting measure but the whole point of the concept.
Push-pull operation: the reason for the entire design
Without a control car, a locomotive would have to run round at the terminus: uncouple, travel to the other end of the train via a siding, couple up again, brake test. That costs time, staff and track capacity – and makes tight-interval services practically impossible. At a hub like Vienna Central Station, it would blow the entire clock-face timetable apart.
| Operating method | What happens at the terminus | Time required | Typical use case |
|---|---|---|---|
| Locomotive-hauled train without control car | Locomotive must run round | high | Trains with long turnaround times |
| Push-pull train with control car | Cab change within the train | low | Local and regional services at fixed intervals |
| Multiple unit | Cab change within the train | low | Local services with fixed units |
| Train with a locomotive at each end | No shunting move | low | Special cases and special trains |
The table shows why the control car has become established in local services: it delivers the turnaround time of a multiple unit with the flexibility of a locomotive-hauled train. Long-distance services use the same principle – the Railjet is nothing other than a push-pull train with a very high permitted speed. Why local and long-distance services nonetheless pursue different vehicle strategies is explained in the article on the difference between local and long-distance services.
Spotted a push-pull train? Both ends count.
Locomotive and control car belong together – document both, and the train formation stays traceable later.
How to tell control car, locomotive and normal coach apart
Step 1: Compare the length
If the vehicle at the front is as long as the other coaches, it's not a locomotive. Locomotives are noticeably shorter.
Step 2: Scan the roof
No pantograph, no coolers, no large equipment: that rules out traction and points clearly to a control car.
Step 3: Listen for noise
A control car stays quiet when starting off. The working noise comes from the other end of the train, where the locomotive is pushing.
Step 4: Read the type code
Next to the number on the side wall is a type code made up of letters. A small f in it means: coach with a driving cab.
The one-second test
Driving cab yes, pantograph no, vehicle length like a coach: that's a control car. You need neither the number nor knowledge of the type for a first identification.
The number: coach or traction vehicle?
This is where the most useful detail knowledge on this page lies. All rail vehicles in Europe carry a twelve-digit number, but it follows two different logics.
For traction vehicles – locomotives and multiple units – the number begins with a type code from the range 90 to 99, followed by the keeper’s country code. For Austria that’s 81. An ÖBB electric multiple unit therefore carries a number starting with 94 81.
For passenger coaches – and the control car is one – the number doesn’t start with one of these codes, but with a two-digit key for the coach’s interchangeability and type. Only after that does the same country code 81 follow. The number is supplemented by the type code, a letter combination describing class, fittings and special features. The small f in it stands for the driving cab.
For you this means: if you see a vehicle’s marking and it doesn’t start with a 9x code, you’re guaranteed not looking at a traction vehicle. The full system of vehicle and coach numbers is explained in the guide to the ÖBB number and UIC coach number.
Photo tips for control cars
Document both ends of the train
The control car alone tells you little about the train. Only with the locomotive at the other end does the train formation become traceable.
Get the type code in the shot
A detail shot of the number and type code on the side wall makes the sighting unambiguously verifiable.
Note pushing moves
When the locomotive is pushing, the control car runs ahead. For a front shot, that's a more rewarding situation than the classic locomotive-leading view.
Keep a safe distance
Mind the platform edge, stay behind the safety line. Tracks, operational railway land and stabling areas are off limits.
Fundamentals on composition, light and shutter speed are covered in the guide good photos of trains. If you want to show the control car leading at the front of the train in the landscape, the Semmering Railway near Breitenstein offers the right photo spot.
Common mix-ups
It's a control car if …
- a driving cab is present but no pantograph
- the vehicle is as long as the other coaches
- no traction noise comes from the vehicle when starting off
- the type code contains a small f
Look more closely if …
- you only see the train from the front and can't judge its length
- the train is standing at the platform and nothing can be heard
- an unfamiliar livery makes the type hard to read
It's not a control car if …
- the vehicle at the front is short and compact – then it's a locomotive
- pantographs sit on the roof
- the marking shows a four-digit ÖBB class
A special case is multiple units with a built-in control car: on the Class 4020, the cab-end coach carries its own four-digit class number, because it’s a fixed part of a multiple-unit set. If you want to compare the principle across borders, the German DBpbzfa 761/765/766 double-deck control cars offer a direct counterpart in the neighbouring country.
Verdict
The control car is the best example of the fact that a driving cab doesn’t yet make a locomotive. It has the workstation but not the traction – and it’s precisely this separation that enables fast push-pull operation, without which a modern clock-face timetable couldn’t work.
Quick verdict
Driving cab yes, pantograph no, length like a coach: that's a control car. It carries a coach number instead of an ÖBB class – and belongs together with the locomotive at the other end of the train in every clean sighting.
Record train formations in full
Locomotive, control car, date and place in one place – so it stays traceable how the train was actually formed.
Summary
- The CityShuttle control car forms the cab-end of a locomotive-hauled local push-pull train.
- It transmits driving commands via a control line to the locomotive at the other end of the train, saving the need to run round.
- Three observations are enough for identification: driving cab, missing roof equipment, coach number.
- Because coach types and liveries change over the years, the specific coach number belongs in every sighting.
Frequently asked questions
What is a control car?
A passenger coach with a driving cab but no traction of its own. It runs at the end of a locomotive-hauled train and lets the train be driven from there. The tractive effort still comes solely from the locomotive at the other end of the train, which then pushes the train.
Why doesn't a control car have a motor?
Because it doesn't need one. Its job isn't traction but control. Driving and braking commands are transmitted via a control line running through the train, from the control car's driving cab to the locomotive. A motor of its own would make the vehicle heavier, more expensive and more maintenance-intensive without any operational benefit.
What is push-pull operation?
An operating method in which a locomotive-hauled train changes direction without running the locomotive round. At the terminus, the driver simply walks to the driving cab at the other end of the train. This saves time and staff and is the precondition for locomotive-hauled trains being able to run at tight intervals.
How do I tell a control car apart from a locomotive?
By length and roof. A locomotive is a short, compact vehicle with pantographs or engine noise. A control car is as long as the rest of the train's coaches, has a continuous passenger saloon and not a single traction feature on the roof.
How do I tell a control car apart from a normal coach?
By the driving cab. A normal coach has gangways and doors at both ends, a control car has a windscreen with a driving cab at one end. A small f also appears in the type code on the side wall, marking exactly this feature.
What does CityShuttle mean?
CityShuttle is an ÖBB product name for local push-pull trains made up of locomotive-hauled coaches. It describes a service, not a single coach type. Different coaches have run under this name over the years – so the specific coach number belongs in every sighting, not just the product name.
Why doesn't a control car have a four-digit ÖBB class?
Because the four-digit class numbers are reserved for traction vehicles: 1 for electric locomotives, 2 for diesel locomotives, 4 for electric multiple units, 5 for diesel multiple units. A control car without traction is not a traction vehicle but a passenger coach – and so carries a coach number under the European coach scheme.
Is a control car more dangerous than a locomotive leading?
No, push-pull operation is an established and approved method with its own technical requirements for control, braking and vehicle strength. For observers on the platform, the usual rules apply unchanged: keep your distance from the platform edge, and never step onto the tracks or operational railway land.
Log your sighting of the ÖBB CityShuttle Control Car
Date, location and vehicle number logged in seconds – and visible to the community.
Related classes
ÖBB Railjet (RJ / RJX)
The Railjet isn't a multiple unit but a fixed coach set with a locomotive at one end and a control car at the other. Here's how to spot it and tell RJ from RJX.
EMUÖBB Class 4020
The Class 4020 is the classic three-part suburban EMU of the ÖBB. Here's how to recognise it, how to read its numbers – and how to tell it apart from newer classes.
Driving trailerDBpbzfa 761 / 765 / 766
A cab at the front, but no propulsion: the double-deck driving trailer leads the push-pull set without pulling it. Here's how to recognise and read it correctly.
Who is behind it
Groups, brands, manufacturers and operators – who owns whom and how to recognise them out in the field.
Where to see the ÖBB CityShuttle Control Car
Specific viewpoints with lighting times, coordinates and an honest verdict on whether the trip is worth it.
Semmeringbahn near Breitenstein
The Semmeringbahn is Europe's first fully-fledged mountain railway and a UNESCO World Heritage site. Around Breitenstein lie its best-known viaducts and a continuous lineside hiking trail. Traffic is modest and vehicle variety low – the subjects are not.
Mountain lineTauern Railway near Schwarzach-St. Veit
At Schwarzach-St. Veit two main lines split apart at a wedge station, and just south of it the climb into the High Tauern begins. Loops, viaducts and car-carrier trains make the north ramp one of the most distinctive mountain spots in Austria.
Junction stationWien Hauptbahnhof
Wien Hauptbahnhof has only been in operation for just over a decade, and it has completely reshuffled Austrian long-distance traffic. Twelve platform tracks as a through station, trains from Hungary, the Czech Republic, Slovakia and Italy – and at night a density of night trains rarely found anywhere else.
Related guides from the blog
