The Anonymous Widower

Gibbs Report – Cambridge Depot

The Gibbs Report, looks in detail at GTR’s depot capacity and especially the stabling for Thameslink.

The report indicates particular problems at Cambridge.

The facility is currently unsuitable for 12 car fixed formation trains and the current trains have to be uncoupled to be accommodated.

Greater Anglia will have the following trains at Cambridge in their open-air depot.

All trains are fixed-formation and I suspect that Greater Anglia have a well-planned train parking philosophy, which could include.

  • Parking two five-car Aventras in a long ten/twelve-car siding.
  • Remote wake-up for the Class 720 and Class 745 trains as I discussed in Do Bombardier Aventras Have Remote Wake-Up?
  • Parking the odd Class 755 train, that will work services to Ipswich in one of the bay platforms.
  • Parking the Class 755 trains, that will work Norwich to Stansted, at the ends of the route.
  • Having a remote toilet servicing team for their trains.

But it would be difficult to fit in the following two trains per hour (tph) Thameslink services.

  • Cambridge to Brighton – Twelve-car Class 700 train
  • Cambridge to Maidstone East – Eight-car Class 700 train

Both services would be run all day, with journey times in excess of two hours, which probably means each service would need nine or ten trains.

GTR will have a need for their own depot as mixing eight and twelve car trains will just fill up Greater Anglia’s depot and I doubt they will be pleased.

The problem can’t be eased by running twelve-car trains to Maidstone East, as the Thameslink platform at that station is too short.

Although Maidstone East station may be redeveloped in the future and a twelve-car platform 3 could be incorporated.

This Google Map shows the layout of Maidstone East station.

Could a twelve-car pltform be squeezed in?

Six-car as opposed to eight-car trains may offer an alternative solution here.

Cambridge would be served by a twelve-car train, that was formed of two six-car units coupled together.

At Bromley South or Swanley station, the two trains would split, with one portion going to Maidstone East station and the other to another convenient station.

Returning North the trains would join up again and travel to Cambridge as a twelve-car train.

The advantages of this are as follows.

  • Two eight-car tph in the core are replaced by twelve-car trains.
  • Two eight-car Cambridge to London tph are replaced by twelve-car trains.
  • Another destination South of London gets awo six-car tph to Cambridge.

The only loser is Maidstone East station, which sees the train length of its two trains per hour to Cambridge reduced from eight-cars to six.

July 9, 2017 - Posted by | Travel | , , , , ,

2 Comments »

  1. […] I discuss this in Depot Issues – Cambridge […]

    Pingback by Gibbs Report – Depot Issues « The Anonymous Widower | July 9, 2017 | Reply

  2. […] Cambridge Depot […]

    Pingback by Reading The Gibbs Report « The Anonymous Widower | July 13, 2017 | Reply


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