Performance and reliability

We work as part of an alliance with Network Rail to continually make our train services more reliable and run on time. All our services are monitored every day, including Sundays and Bank Holidays.

The standard measure throughout Great Britain for measuring train service performance is the Public Performance Measure (PPM). It is made up of two distinct elements - punctuality and reliability.

  • Punctuality is measured as the percentage of our trains that have arrived at their final destination within five minutes of the advertised time. When a specially advertised revised timetable is in operation, at times of engineering work for example, we are measured against the revised times
  • Reliability is measured as the percentage of our advertised train services that operate

We have targets for our PPM, both for the network as a whole, and broken down by regions.

Daily results

Results from 25th May 2017

Route Result
ScotRail 80.6%
Express Services 72.6%
Suburban East Services 83.3%
Suburban West Services 81.3%
Rural Services 79.7%


  • Signalling fault at Rutherglen
  • ​Track circuit fault at Glasgow Central.

Monthly results

Results of the last rail four-week period from 1 - 29 April 2017.

Download Monthly Performance Results

The routes explained

Express Services

  • Edinburgh to Aberdeen
  • Edinburgh to Falkirk to Glasgow
  • Glasgow/Edinburgh to Inverness
  • Glasgow to Aberdeen

Suburban East Services (Formerly East Coast)

  • Edinburgh to Bathgate, Dunblane, Fife Circle, Tweedbank and North Berwick

Suburban West Services (Formerly Strathclyde and Central Groups)

  • All Services starting or terminating at Glasgow Central High Level
  • All Services via Glasgow Central Low Level
  • All Services via Glasgow Queen Street Low Level
  • Glasgow Queen Street to Falkirk Grahamston/Cumbernauld/Dunblane/Maryhill/Anniesland
  • Kilmarnock to Ayr/Girvan/Stranraer​
  • Motherwell to Cumbernauld

Rural Services (Formerly South West and Highland Groups)

  • Glasgow to Stranraer
  • Glasgow/Stranraer/Girvan to Dumfries to Carlisle/Newcastle
  • Inverness to Aberdeen, Kyle of Lochalsh and Wick/Thurso
  • The West Highland Lines

Service Quality Incentive Regime (SQUIRE)

At ScotRail, we work hard with Transport Scotland to ensure we maintain the high standards of our stations and trains through our Service Quality Incentive Regime (SQUIRE). This seeks to ensure that all of our stations and trains are checked every four weeks, and any faults or areas for improvement are reported and repaired.

  • We check our stations to make sure lights are on when required, stations and shelters are clean and free from litter, and seats are safe to sit on
  • We check our trains to make sure seats are clean and safe, there's a comfortable ambient temperature and toilets are available for customer use
  • We work hard to ensure our stations and trains are free from graffiti