Inverness based class 158 query

[12CSVT]

The Scotrail fleet of class 158s are split between Inverness (158701 to 725) and Haymarket (158726 to 741 /782 / 786 / 789 / 867 / 868 / 869 / 870 / 871). However, there always seem to be quite a few Inverness based 158s working local services in the Edinburgh area (ie Fife Circle and Stirling / Dunblane services), and are sometimes paired with Haymarket 158s).

Do the Scotrail 158s operate as a common fleet, or do the Inverness and Haymarket units have separate diagrams ? And why are units working Edinburgh locals based at Inverness ?

 

[Failed Unit]

The Scotrail fleet of class 158s are split between Inverness (158701 to 725) and Haymarket (158726 to 741 /782 / 786 / 789 / 867 / 868 / 869 / 870 / 871). However, there always seem to be quite a few Inverness based 158s working local services in the Edinburgh area (ie Fife Circle and Stirling / Dunblane services), and are sometimes paired with Haymarket 158s).

Do the Scotrail 158s operate as a common fleet, or do the Inverness and Haymarket units have separate diagrams ? And why are units working Edinburgh locals based at Inverness ?

To the last part of your question there isn't enough room at Haymarket so Inverness has a larger fleet than required. Edinburgh needs to do some of the real heavy work still. A 158 diagram in Edinburgh is just that so you can get a Haymarket or Inverness based unit. Haymarket units tend to stay away from Inverness.

 

[Liam]

To the last part of your question there isn't enough room at Haymarket so Inverness has a larger fleet than required. Edinburgh needs to do some of the real heavy work still. A 158 diagram in Edinburgh is just that so you can get a Haymarket or Inverness based unit. Haymarket units tend to stay away from Inverness.

Many of the Inverness diagrams stable in Perth overnight, where internal and external cleaning and light maintenance can be done, and work Perth to Edinburgh services before taking up Fife Circle/Perth diagrams. Edinburgh-Fife-Dundee's are usually Haymarket units, Edinburgh-Fife-Perth's are usually Inverness units. Although a few Haymarket units end up at Perth overnight from Glasgow or Edinburgh via Stirling.