EfW – Verkehrsgesellschaft

EfW – Verkehrsgesellschaft is a German railway operator. This page explains locomotive changes, traction limits and what you'll see of them trackside.

Also known as: EfW

GermanyGermanyFreight8 min read

Key takeaways

  • A train doesn't necessarily keep its locomotive – traction is arranged section by section.
  • Locomotive changes have technical causes: end of overhead line, electrification system boundary, authorisation, train weight.
  • Banking, assisting and pilot locomotives are different roles within the same train and should be logged separately.
  • A locomotive running along isn't always traction – dead-in-tow machines are cargo.
  • The spelling EfW with a lower-case f is part of the company's registered name and should be reproduced literally.
Contents
  1. 1.What is EfW – Verkehrsgesellschaft?
  2. 2.Why trains change locomotives
  3. 3.Telling traction roles apart
  4. 4.Where traction boundaries lie in the network
  5. 5.How to log traction completely
  6. 6.Common mix-ups
  7. 7.Conclusion

Fact file

CountryGermany
Abbreviation in the company nameEfW – with a lower-case middle letter
Name component"Verkehrsgesellschaft" – a neutral term that does not commit to a particular mode of transport
Classificationassigned to rail freight in this database
Rolerailway operator (EVU), not an infrastructure manager

How to recognise this operator

Is this really EfW – Verkehrsgesellschaft?

Tick off everything that applies to the train you are looking at right now.

  • The spelling EfW with a lower-case f is a striking and stable naming feature
  • The data panel begins with the country code D and the vehicle keeper marking
  • Train formation and traction can change several times within a single working
  • Locomotive changes are to be expected at system boundaries and where overhead wire ends
  • Hired vehicles carry the markings of their keeper, not of the operating company

Updated: August 2026 – A freight train rarely reaches the end of its journey with the same locomotive it started with. Traction is arranged section by section, and the change points sit wherever the technology draws a line. With EfW – Verkehrsgesellschaft, it’s worth widening your view from the individual locomotive to the whole traction chain.

Two locomotives on the train? Log both.

In Traintrack you record several vehicles and their roles in a single sighting – no more juggling scraps of paper.

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What is EfW – Verkehrsgesellschaft?

EfW – Verkehrsgesellschaft is a German railway operator. The company name consists of the abbreviation “EfW” – striking for its lower-case middle letter – and the component “Verkehrsgesellschaft” (transport company).

That addition is deliberately neutral: it commits to neither freight nor passenger transport. In this database, the company is assigned to rail freight; that’s an editorial classification, not a statement about individual services, customers or routes. Such details can change – check the current status before relying on it.

Spellings are part of the registered name

Internal capitalisation, lower-case middle letters, full stops and hyphens are part of a company's registered name, not typos. Copy them literally into your notes. Anyone who "tidies up" a company name only makes it harder to search registers and databases later.

Why trains change locomotives

The locomotive change is one of the most visible quirks of freight traffic – and at the same time one of the least understood. It almost always has a concrete technical or operational reason.

Reason 1: The overhead line ends

Where electrification stops, a diesel or dual-mode locomotive has to take over. This is the most common reason for a change in domestic traffic.

Reason 2: The electrification system changes

At system boundaries, vehicles need matching equipment. Multi-system locomotives bridge the gap; everything else gets swapped.

Reason 3: Authorisation runs out

Vehicles are authorised for particular networks and countries. Without authorisation, the run ends – regardless of the technology.

Reason 4: Traction isn't enough

On gradients or with heavy trains, a second machine is added, either as a pilot locomotive or as a banking locomotive at the rear.

For observers, that means a locomotive change can be planned for at certain points in the network. Anyone who seeks out such spots sees more vehicles in less time than on open track – and does so exclusively from publicly accessible locations.

Telling traction roles apart

Not every locomotive in a train formation does the same job. The table below sorts out the roles and shows how to recognise them.

Role Position in the train How to recognise it
Lead locomotive at the front hauls the train, pantograph raised or engine audible
Pilot locomotive ahead of the lead locomotive two working machines at the front
Mid-train locomotive within the formation marshalled between groups of wagons, usually working
Banking locomotive at the rear pushes from behind, typical on gradients
Dead-in-tow locomotive usually behind the lead locomotive pantograph lowered, dark cabs
Light engine, no wagons running alone transfer move or empty run between duties

Vehicles on which this is easy to observe include modern platform locomotives such as the Bombardier TRAXX, dual-mode vehicles such as the Siemens Vectron Dual Mode, and heavy diesel locomotives such as the Class 232, which traditionally steps in wherever there’s no overhead wire. The guide to identifying classes shows how to systematically work out an unfamiliar machine.

Caught a locomotive change?

Log both machines with number and role – that turns it into a genuinely rare sighting.

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Where traction boundaries lie in the network

Traction boundaries aren’t random points. They follow the infrastructure – on the federally owned network, that means the facilities of DB InfraGO – and once you know the logic, you can find them without insider knowledge.

Locomotive changes are likely …

  • at the end of electrified sections
  • at transitions to non-electrified sidings
  • ahead of gradient sections with heavy trains

Possible, but irregular …

  • at major hubs with crew changes
  • during diversions for engineering works
  • when substitute vehicles are deployed

Not really to be expected …

  • on continuously electrified main lines
  • on short trip workings
  • when dual-mode vehicles are in use

Where freight traffic actually runs across the network, and which routes are especially rewarding, is covered by the Freight Train Radar Germany. For stations with plenty of shunting, the guide to spotting at marshalling yards sets out the rules for safe vantage points.

Shunting areas remain off-limits

Exactly where locomotive changes happen is where shunting takes place: machines run round, wagons are coupled, and moves take place without signals and sometimes under remote control. Track areas, run-round loops and operational railway land are closed off and life-threatening. Observe only from platforms, bridges, roads and paths that are publicly accessible.

How to log traction completely

Have you captured the whole traction?

With several traction units, noting the role is what decides the value of the sighting.

  • Vehicle number of every locomotive involved
  • Role of each locomotive: lead, pilot, mid-train, banking, dead-in-tow
  • Vehicle keeper marking of each locomotive, noted separately
  • Pantograph position on electric locomotives
  • Location, direction of travel, date and time
  • Approximate number of wagons and type of train

One frequently overlooked point is the order within the train formation. Two locomotives directly coupled together at the front don’t automatically mean both are working. Nor does a single machine mean the train is running with only that one locomotive – a banking locomotive at the rear is easy to miss if you only photograph the front of the train. Anyone who looks all the way to the back of longer trains regularly discovers vehicles missing from the standard note.

It’s also worth a glance at the roof section on electric locomotives. The type and number of pantographs says something about which networks and electrification systems a machine is equipped for. Multi-system vehicles often carry pantographs of different pan-head widths – a detail that’s easy to spot from a bridge and almost never from below. That doesn’t tell you for certain whether a vehicle is actually authorised for a particular country, but it’s a useful clue as to whether a machine was built for system changes.

This care pays off especially with companies that provide traction for third parties. Comparable market players include Häfen und Güterverkehr Köln, TX Logistik and Lokomotion Gesellschaft für Schienentraktion – the last of which even carries the idea of traction in its name.

Common mix-ups

  • Two locomotives means double-heading – the second machine could be dead-in-tow, and so cargo.
  • A locomotive change means a fault – most changes are scheduled and technically motivated.
  • A diesel ahead of an electric means overhead line damage – often that’s simply where electrification ends.
  • A banking locomotive means a second train – machines pushing from the rear belong to the same train.
  • Vehicle keeper marking means operating company – with hired locomotives, the two regularly diverge.

Conclusion

EfW – Verkehrsgesellschaft stands here for an observing approach that pays off more in freight traffic than any fleet list: not fixing on the one locomotive, but understanding the traction chain. Anyone who recognises why a change happens at a particular point also knows where the wait is worthwhile.

In short

The company name is neutral, but the spelling is distinctive and belongs word for word in your notes. Operationally, what counts is that traction is organised section by section. Log every locomotive with number and role, and the sighting explains itself.

Traction chains, not single shots

With Traintrack you log whole train formations – and see which machines you're still missing.

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Summary

  • Apart from its striking spelling, the company name is neutral; its classification here comes from the database.
  • Locomotive changes are an everyday occurrence in freight traffic and follow technical and operational boundaries.
  • Anyone who distinguishes traction roles notices more than someone who only logs the lead locomotive.
  • For vehicle identity, the data panel with number and vehicle keeper marking remains decisive.

Frequently asked questions

Why do trains change locomotives en route?

Because the technical conditions change. An overhead line ends, an electrification system changes, a route doesn't permit certain axle loads, or the locomotive isn't authorised for the following section. On top of that come operational reasons such as crew changes and diagramming. A locomotive change is therefore not a special case but an everyday occurrence in freight traffic.

What's the difference between a pilot locomotive and a banking locomotive?

A pilot locomotive runs ahead of the actual lead locomotive at the front and helps pull. A banking locomotive pushes from the rear of the train, typically on gradients. Both increase the available tractive effort. The distinction matters for logging, because it explains why a train is running with two or more traction units.

How can I tell a dead-in-tow locomotive?

By several signs: a lowered pantograph on electric locomotives, dark cab windows, no audible engine noise on diesel locomotives, and often a position behind the lead locomotive. A dead-in-tow machine is cargo, not traction. Log it anyway – transfer moves are often the only chance to see certain vehicles.

What does traction power mean in practice?

It describes how much tractive effort a traction unit can put onto the rail. Besides engine power, adhesive weight and axle count matter most. That's why heavy freight locomotives are built large and massive. If one machine's traction isn't enough, a second is added – visible as double-heading, a pilot locomotive or a banking locomotive.

Why do some stations see especially many locomotive changes?

Because they lie at a technical or operational boundary: at the end of electrification, at an electrification system changeover, at a network boundary, or at a point where crews are relieved. Such stations are rewarding for observers because shunting happens there as a matter of routine – observed, of course, only from publicly accessible locations.

Do dual-mode locomotives change any of this?

Yes, in part. Vehicles with electric and diesel-electric drive can switch from the overhead line to their own power and so avoid a locomotive change. They're especially interesting at the transition between a main line and a non-electrified siding. The switch is usually only visible from the lowered pantograph.

How do I correctly log a train with several locomotives?

List each locomotive with its own vehicle number and add its role: lead locomotive, pilot, mid-train, banking, or dead-in-tow. Only then does it become clear what you actually saw. An entry with two numbers and no role noted leaves it open later whether it was double-heading or a transfer move.

Does the locomotive tell you anything about the operating company?

Only to a limited extent. The vehicle keeper marking names the vehicle's keeper. Hired locomotives are especially common in freight traffic, and the same machine can run for different companies in quick succession. So log the keeper and the presumed operating company separately.

Log a sighting of EfW – Verkehrsgesellschaft

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