The Anonymous Widower

The Class 319 Flex Train And Third Rail Routes

In writing The Electrical System Of A Class 319 Flex, I came to the conclusion, that the designers of the Class 319 Flex had taken great care that the train would perform to a high standard on lines with third-rail electrification..

There are three routes that could be given an improved service using a third-rail bi-mode train.

Ashford to Brighton on the Marshlink Line.

Oxted to Uckfield on the Oxted Line.

Reading to Tonbridge via Gatwick Airport on the North Downs Line.

Note.

  1. From Ashford, trains on the Marshlink Line could go to London, but probably not on High Speed 1.
  2. The East Coastway Line between Hastings and Brighton can accept eight-car trains, and is a 90 mph line, that has recently been resignalled.
  3. From Oxted on the Oxted Line trains could go to London.
  4. The Uckfield Branch has been updated to accept twelve-car trains.
  5. Tonbridge to Gatwick Airport was electrified as a Eurostar diversion route.

For operational reasons on the Uckfield Branch and along the South Coast, it would probably be a good idea, if the ability to run as eight- and twelve car formations was developed for the Class 319 Flex.

The South Coast Express

The East Coastway Line could be connected to the West Coastway Line to Southampton Central station with a reverse at Brighton.

At present because the Marshlink Line is not electrified and the two Coastway Lines are run independently, you can’t travel between stations on the West Coastway Line to any station on the East Coastway Line without changing trains at Brighton.

Consider creating a South Coast Express between Ashford and Southampton using bi-mode trains.

  • The Class 800 train, which is the only current bi-mode train, comes as a five-car train, but doesn’t have a dual voltage version, although its cousin the Class 395 train can work on third rail networks.
  • The Class 319 Flex train could do the whole route and would only need to use diesel power for twenty-six miles.
  • The speed limit along the two Coastway Lines could probably be upgraded to 100 mph.
  • A new Eastbourne Parkway station could be created on a reopened direct line between Polegate and Pevensey & Westham stations, to avoid all trains reversing at the current Eastbourne station and hence save time.
  • It would be a feeder railway to Thameslink services at Brighton and Eurostar services at Ashford.
  • Eight-car or even twelve-car formations could work through Falmer station on match days at The Amex.
  • Southampton have plans to develop the railway to serve St. Mary’s Stadium and the Waterfront, which could be part of an upgraded West Coastway Line.

Currently, with a change at Brighton, Southampton to Ashford takes three hours forty-seven minutes. With a 100 mph train on an updated 100 mph line, the service could surely be a lot faster.

If an hourly service was required, then you get this table of trains required to run the service against  the journey time between Ashford and Southampton.

  • Three hours needs six trains.
  • Two and a half hours needs five trains.
  • Two hours needs four trains.

Southern use more trains than that now to provide a slower service, with a change at Brighton.

West Of Basingstoke

The West of England Main Line is only electrified as far as Basingstoke station, which is just under fifty miles from London.

Distances from Basingtoke are approximately.

Could a Class 319 Flex carry enough fuel to serve this route?

I have seen an early copy of the brochure for a Class 319 Flex and Porterbook say that the train is designed to handle ten round trips from Hazel Grove to Buxton, which is a seventeen mile trip, where the steep gradients up are probably balanced by the coming down.

This would indicate that the Class 319 Flex could do a round trip without refuelling.

The route is currently worked by eleven two-car Class 158 trains and thirty three-car Class 159 trains and they take three and a half-hours for each hourly service between London Waterloo and Exeter St. Davids.

The Class 319 Flex train has a comparable speed to the Class 158/159 trains on diesel and is ten mph faster, when running on electricity.

I don’t think that the trains would be used all the way to Exeter, as they are not really designed for a journey of that length, but there may be other places where they could be ideal.

  • Running between London Waterloo and Salisbury to increase the frequency, where they might save upwards of fifteen minutes between Basingstoke and Waterloo, as they are faster than the diesel Class 158/159s.
  • Running the hourly circular service from Salisbury to Chandlers Ford via Southampton, which has sections of electrified line, where they could replace Class 158/159s.
  • Existing lines like the Lymington Branch, where they could replace Class 158/159s
  •  Reopened lines like the Fawley Branch,  Ludgershall Branch and the Swanage Railway.
  • New services like Portsmouth Harbour to Salisbury via Southampton and Romsey.

It could be that some selective electrification like Southampton to Romsey could be very beneficial.

 

 

 

 

 

March 5, 2017 - Posted by | Travel | , , , , , , , ,

1 Comment »

  1. […] In The Class 319 Flex Train And Third Rail Routes, I looked at various third-rail routes that could be served with a Class 319 Flex train. […]

    Pingback by The Class 319 Flex Units To Be Class 769 « The Anonymous Widower | May 25, 2017 | Reply


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