The Anonymous Widower

Why Do Some Train Operators Still Buy Half-Trains?

This picture shows the unloved-by-SWR Class 707 trains.

South Western Railway‘s predecessor; South West Trains bought thirty of these trains and SWR is replacing them with Class 701 trains.

Sixty of these new trains will be ten-cars in length and thirty will be five-car.

Why?

Consider.

  • Most Class 707 trains, always seem to run as ten-car units, formed of two trains.
  • There are four cabs, rather than two.
  • A ten-car Class 701 train has twenty more seats than two five-car trains.
  • Including standing passengers, a ten-car Class 701 train has eight percent more capacity, than two five-car units.
  • Staff have to get out of the train and back in, to go between the front and back of the train.
  • I’ve even seen trains delayed because the conductor was helping a disabled passenger in the other train.

Running two half-trains as a full-size train must surely be more stressful for the staff and more uneconomic for train operators.

The only place for five-car trains, is surely on routes with short platforms.

The Cut-And-Paste Aventra

It should also be noted that Bombardier’s new Aventras and other recently-designed trains, can be cut and pasted to adjust the trains that an operator needs.

At the present time, services on the Gospel Oak to Barking Line, which can only accept four-car trains are being run by four-car Class 378 trains, which have been shortened from their normal five-car length by removing a car.

So for instance if on a route, South Western Railway needed to run eight-car trains due to a temporary length restriction, they could shuffle a ten-car and a five-car train to get an eight-car and a seven-car,

In a list of Aventra variants, the following are detailed.

Tfl Rail

Class 345 trains will be nine-car, but currently they are running as seven-cars.

London Overground

Class 710 trains will be used in three ways.

It has puzzled me, why the Lea Valley sets are not to be built as eight-car trains and I discuss this in Latest On The New London Overground Class 710 Trains.

Greater Anglia

Class 720 trains will be `22 ten-car and 89 five-car trains.

I think that Greater Anglia have some routes, that cannot accept ten-car trains.

As I showed for Hertford East station in Could London Overground Extend To Hertford East Station?

So will we be seeing some creative shuffling to get a tailored fleet, with perhaps some eight-car trains for routes like those to Hertford East?

I think that six ten-car trains and four five-car trains can be converted into ten eight-car trains.

South Western Railway

Class 701 trains will be 60 ten-car trains and 30 five-car trains.

Do South Western Railway need a sub-fleet of eight-car trains?

They can easily create one, by shuffling the trains.

West Midlands Trains

Class 730 trains will be 36 three-car trains and 45 five-car trains.

These are like-for-like replacements of the current fleet.

c2c

Class 711 trains will be six ten-car trains.

They will be replacing Class 387 trains on a short-term lease.

Conclusion

It appears to me, that for the train operator to have maximum flexibility, that you need to start with a long train and a short train and be able to shuffle cars around to get the train fleet you need.

Certainly a fleet of both ten-car and five-car Aventras gives you the possibility of creating a sub-fleet of eight-car trains.

Interestingly, the Hitachi Class 800 trains appear to have a similar ability.

 

 

 

May 2, 2019 - Posted by | Transport | , , ,

No comments yet.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.