Thank you for your email received by us on 24 March 2017 asking for information about the punctuality of London Overground trains at Walthamstow Central Station.
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 the information you require. You asked for:

information for London Overground Punctuality at Walthamstow Central, on the newer Overground lines, in the last 10 weeks

All mainline trains adhere to the Public Performance Measure (PPM), the performance regime used to measure all National Rail companies in the UK based on trains reaching their timetabled destination within five minutes of their timetabled arrival time on suburban routes.

The overall punctuality for Walthamstow Central during the requested period was 94.8% (PPM).

If this is not the information you are looking for, 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
Information Governance
Transport For London