The Anonymous Widower

Future Stansted Airport Train Services

Currently, the following services go to Stansted Airport station, in trains per hour (tph)

  • Four tph – Stansted Express – Liverpool Street
  • One tph -CrossCountry – Birmingham New Street via Cambridge, Peterborough and Leicester
  • One tph – Greater Anglia – Cambridge via Audley End and Whittlesford Parkway

Greater Anglia have plans to change the services.

  • Extend the Norwich and Cambridge service to Stansted Airport.
  • Reintroduction of a Stansted Express service between the Airport and Stratford is mentioned in Wikipedia.

With two very long and one shorter platform, the Airport station has plenty of capacity.

Stansted Express Journey Times And Trains Required

Currently, Stansted Express services run at a frequency of four tph, that take fifty minutes between London and the Airport.

If a turnround time of ten minutes is added, then it takes trains two hours to do a round trip between London and the Airport.

So this means that thse numbers of trains are needed for the following frequencies.

  • One tph – Two trains
  • Two tph – Four trains
  • Four tph – Eight trains

As Greater Anglia have ordered ten Class 745/1 trains for Stansted Express, these would be able to provide a reliable service with eight in service, one as a spare and one in maintenance.

A Stansted Express service to Stratford would take the same time and would need similar numbers of trains.

Norwich and Stansted Airport Journey Times And Trains Required

The timing for the proposed service between Norwich and Stansted Airport, can be estimated by taking the timing of current services.

  • Norwich and Cambridge – One hour 20 minutes
  • Cambridge and Stansted Airport – 30 minutes

Both services are run by reasonably-modern 100 mph diesel trains.

Add in a ten minute turnround at both ends of the route and it should be possible to schedule a Stansted Airport and Norwich round trip in four hours.

Greater Anglia is introducing new bi-mode Class 755 trains on this route.

  • The trains will be designed for fast stops.
  • The trains will run on electricity on the nearly forty miles between Stansted Airport and Ely and around Norwich.
  • The trains will run on diesel between Ely and Trouse Junction, just to the South of Norwich.
  • The trains will probably be abe to achieve 100 mph on a good proportion of the route.
  • The trains will probably be four-cars.

It would need four trains to run the proposed one tph service.

The current Norwich and Cambridge service probably needs three trains, so extending to Stansted Airport will need an extra train.

This seems to be good value for passengers, the Cities of Cambridge and Norwich, Stansted Airport and Greater Anglia.

Could There Be A Norwich And London Service Via The West Anglia Main Line?

I can remember seeing steam-hauled expresses thundering between Liverpool Street and Norwich in the 1950s, through places like Brimsdown.

They are long gone, but they gave places like Wymondham and Thetford a direct rail link to London.

Greater Anglia’s future plans will connect these towns and others directly to Stansted Airport, but could they go all the way to London?

What do the mathematics show?

The section timings of a Norwich and London service via Cambridge and Stansted Airport would be as follows.

  • Norwich and Cambridge – One hour 20 minutes
  • Cambridge and Stansted Airport – 30 minutes
  • Stansted Airport and London – 50 minutes

This is just two hours and forty minutes.

Add in a few minutes for the reverse at Stansted Airport and the turnround at either end and I believe a round trip could be comfortably within six hours.

It would therefore mean that six trains would be needed to run an hourly service between London and Norwich.

  • Stops could be Tottenham Hale, Broxbourne, Harlow Town, Bishops Stortford, Stansted Airport, Audley End, Whittlesford Parkway, Cambridge, Cambridge North, Ely and all stations to Norwich.
  • The London terminal could be Liverpool Street or Stratford.
  • If Stratford were to be used, trains could be turned round in the High Meads Loop.
  • Trains would be Class 755 trains, which are bi-mode and capable of 100 mph running.
  • Between London and Ely, the trains would take advantage of the electrification.

The service would give a lot of stations a direct connection to Stansted Airport, that would be complimentary to the Stansted Express.

It would require just two more trains, than the planned Norwich and Stansted Airport service.

The advantages of the service would be.

  • Stations between Thetford and Norwich would get direct London and Stansted Airport services.
  • Stratford would get a very useful direct service to Stansted Airport.

Greater Anglia would serve two markets with the extended service and just two extra trains, over the planned service.

If Greater Anglia say a London and Norwich via Stansted Airport service will never happen, they are being economical with the truth.

Could Class 755 Trains With Batteries Bridge The Electrification Gap,Between Ely And Trowse Junction?

The distance between the electrification at Ely station and Trowse Junction, South of Norwich, is just under fifty-three miles.

I believe that the tri-mode four-car Flirts for Trains for Wales are similar to Greater Anglia’s Class 755 trains, with three of the Deutz diesel engines replaced with 100-120 kWh batteries.

Would this be enough power to take the train across the electrification gap?

Consider.

  • There is electrification at both ends and the batteries could be full, on entering the unelectrified section.
  • The route is very gentle.
  • There are a few stops, but the trains will have regenerative braking to charge the batteries.
  • The trains could retain a single diesel-engine,, should livestock on the line cause the service to be suspended.

For these and other reasons, I suspect that in a couple of years, diesel will be relegated to emergency use only between Norwich and Stansted Airport.

The Herd Of Wannabe Unicorns In The Room

Other places have elephants, but the City of Cambridge has herds of wannabe unicorns.

For those of you, unfamiliar with the term, Wikipedia defines unicorn like this.

A unicorn is a privately held startup company valued at over $1 billion.

Cambridge is expanding at a fast rate and it needs public transport systems to bring in the workers, visitors and investors.

  • A new Cambridge North station has been built.
  • A guided busway linking Addenbrooke’s and Papworth Hospitals and the Cambridge Biomedical Campus to the City Centre has been built.
  • A new Cambridge South station is being planned.
  • The East-West Rail Link will connect Cambridge to Oxford.

Road travel in the local area is not an option.

Currently, most rail services radiate from Cambridge station, but like London and other cities are proving, Cambridge needs Cross-City services.

A high-frequency North-South route is being created  across the City.

  • To the North of the City is Ely station.
  • North of Ely station, lines fan out to Peterborough, Kings Lynn and Norwich.
  • From North to South across the City, there will be Waterbeach, Cambridge North, Cambridge and Cambridge South  stations.
  • South of Cambridge South station, lines will fan out to Bedford and Oxford, Royston, Hitchin and Kings Cross and Audley End, Stansted Airport and Livepool Street.

In addition routes to Bury St. Edmunds, Ipswich and Felixstowe reach out to the East.

The current North-South train services include.

  • 1 tph – Birmingham New Street and Stansted Airport
  • 1 tph – Kings Lynn and Kings Cross
  • 1 tph – Cambridge and Norwich
  • 2 tph – Cambridge and Brighton
  • 2 tph – Cambridge and Liverpool Street
  • 2 tph – Cambridge and Kings Cross

The number of these services will grow.

Will More Stations Be Built Or Reopened Between Stansted Airport And Norwich?

I know the route, South of Cambridge better than I know it to the North.

To the South of Cambridge, the current stations could be sufficient, with improved car and bicycle parking and provision for electric cars.

To the North, there appear to be new housing developments under consideration and surely, these will need good public transport to and from Cambridge.

Does The Norwich and Stansted Airport Service Need Two Trains Per Hour?

I have a feeling that Greater Anglia think, that East Anglia’s generally one tph services between major towns and cities is not enough.

Greater Anglia have said they will do the following.

  • Increase the Ipswich and Norwich frequency from two to three tph.
  • Run two tph between Ipswich and Kennett via Bury St. Edmunds.

I talked previously about Cambridge and its  herd of wannabe unicorns.

I believe strongly, that the Cambridge Effect will in a couple of years, mean that the frequency between Norwich and Stansted Airport will need to be doubled.

But will Greater Anglia have enough trains?

Greater Anglia are  purchasing a fleet of 38 Class 755 trains with a total of 138 carriages to replace 27 assorted trains with a total of 58 carriages.

  • This is a forty percent increase in the number of trains.
  • This is nearly two and a half times as many carriages.
  • The average number of carriages per train is raised from 2.1 to 3.6.

That is a massive increase in train capacity.

There should be enough for either.

  • Eight trains for two tph between Norwich and Stansted Airport.
  • Twelve trains for two tph between Norwich and London via Stansted Airport.

These would be increases of four and eight trains respectively on Greater Anglia’s  current plan for a one tph service between Norwich and Stansted Airport.

Conclusion

Greater Anglia have enough trains to run a two tph service between Norwich and London via Stansted Airport.

I believe that the Cambridge Effect will create enough demand to necessitate expansion of the proposed one tph service between Norwich and Stansted Airport into a Norwich and London via Stansted Airport service.

  • Frequency will be two tph.
  • New commuter-friendly stations could be built.
  • The Southern terminal could be Stratford to give a second route to Stansted Airport from London.

Greater Anglia would be satisfying two markets with one train.

 

 

June 26, 2019 - Posted by | Transport | , , , , , , , , , ,

1 Comment »

  1. […] Future Stansted Airport Train Services, I outline how trains might serve Stansted Airport from Norwich and Stratford […]

    Pingback by Tottenham Hale Station Is Beginning To Make Sense « The Anonymous Widower | June 27, 2019 | Reply


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