Our performance

We want to be as honest and open as possible when we talk about our performance.

The age of our trains, stations and lines are still a major challenge. But a huge amount of work has been carried out since the start of our franchise, and we believe our customers are now beginning to see some real benefits.

Download our full Public Performance Measure report.

Punctuality and reliability


Punctuality is the number of trains that arrive at their final station on time. The ‘on-time allowance’ is the leeway we have, to still be classed as on time. 


Reliability is the number of scheduled trains that run.

  • 4-week average from 4 February 2018:

       Punctuality %  Reliability %

    Target  Actual Target
    High Speed services 81.3 90.0 96.8 99.2
    London-Thames Valley services 72.8
    92.0 97.1 99.0
    Bristol Suburban services 83.4 92.0 98.2 99.5
    Devon services 94.5 92.0 99.4 99.5
    Plymouth and Cornwall services 97.1 92.0 98.6 99.5
    South Wales-South Coast services 85.8 92.0 96.4 99.5

Updated Friday 09 March 2018. Discounts apply from 11 March 2018 to 07 April 2018 inclusive.

To track how well we are doing, view our daily performance and punctuality results.

Void days

A void day is when there’s a serious disruption at peak time, and we haven’t offered you another way to get to where you are going.

We will put posters up at our stations, and get in touch with you by email or post.

We'll explain what happened, and how you can claim either a season ticket extension or a refund.

Discounts for renewed season tickets

If you are entitled to a discount, we’ll take it off when you buy your new ticket:
  • two void days were declared for London Thames Valley and High Speed Services on 5 and 6 July 2017
  • one void day was declared for all service groups on 1 March 2018
  • one void day was declared for all service groups except LTV on 2 March 2018

Customer satisfaction

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