FOI request detail

Contract price adjustment of London bus routes

Request ID: FOI-2691-2324
Date published: 21 November 2023

You asked

Follow-up to TfL Ref: 2409-2324. Thanks you for your response, I didn’t realise that the CPA was calculated on a monthly basis. Can I narrow it down to the Arriva south( Brixton, Norwood, Thornton , Croydon garages) bus routes.

We answered

TfL Ref: 2691-2324

Thank you for your further email received by Transport for London (TfL) on 27 October 2023 asking for information about the Contract Price Adjustment of London bus routes following your previous request for information, TfL Ref: 2409-2324.

Your request has been considered in accordance with the requirements of the Freedom of Information Act and our information access policy.  I can confirm that we hold some of the information you require.

We previously explained that in order to source the information you require: ‘there are more than six hundred bus contracts to consider and each of them receive an inflationary adjustment every year on the anniversary of the date the bus operating company submitted their tender bid. The calculations are performed on a monthly basis. In addition, there are currently three different inflationary formulas in operation and therefore we are not applying the same percentage increase each month.

Unfortunately, it is not possible to source the requested information within the costs limit for responding to FOI cases, as set out under section 12 of the Freedom of Information Act. This is because the information you are seeking is not held in a single repository from which we could easily retrieve these details and compile accordingly to fulfil your request, it would therefore require considerable resource and time to coordinate in a format suitable for public disclosure’.

You subsequently asked for the following:

I didn’t realise that the CPA was calculated on a monthly basis.

Can I narrow it down to the Arriva South (Brixton, Norwood, Thornton , Croydon Garages) bus routes.

Please see the attached PDF for the requested data.

If this is not the information you are looking for, or if you are unable to access it for any reason, please do not hesitate to contact me.

Please see the attached information sheet for details of your right to appeal as well as information on copyright and what to do if you would like to re-use any of the information we have disclosed.

Yours sincerely


Jasmine Howard
FOI Case Officer
FOI Case Management Team
General Counsel
Transport for London

Back to top

Want to make a request?

We'll email you the response within 20 working days.


We'll publish the response online without disclosing any personal information.