TfL Ref: 1921-1920

Thank you for your request received by us on 26 September 2019 asking for information about night bus service N11 on Monday, 26 August 2019.

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. Your request is as follows:

a sudden, previously unannounced termination of service of a night bus (N11) today, Monday 26/8/19.

How many similar sudden termination of services have affected the night bus network in the last year and the day bus network in the last year?

I can advise that the N11 service was shortened due to traffic delays, which occurred at the beginning of its route. The next bus service became available eight minutes later, although this was also running slightly late; referenced as ‘Trip 10’ in the attached file of journeys made. Journey data for both of these services are referenced as ‘Trip 10’ and ‘Trip 8’ in the attached files of journey records,

We are refusing your request on how ‘many similar sudden termination of services have affected the night bus network in the last year and the day bus network in the last year?’ under section 14(1) of the Act. This is because we would have to extract, review and formulate a considerable volume of data considering that we manage a bus fleet of around 9,300 vehicles operating across 675 routes.

Whilst transparency is a vital part of our work, we consider that to undertake the necessary collation, scrutiny and extraction of data needed to answer this part of your request would place an unreasonable burden on our resources.

Our principal duty is to provide an effective transport service for London and we consider that answering this part of your request would require disproportionate effort. It would be a significant distraction from our work managing the TfL network, requiring re-allocation of already limited resources and placing an unacceptable burden on a small number of personnel. We do wish to clarify that whilst we consider that this part of your request falls under section 14(1) of the FOI Act, this does not reflect a conclusion that it has been your intention to deliberately place an undue burden on our resources.

Therefore, due to the wide ranging scope of this part of your request, we are refusing this under section 14 of the FOI Act.

However, attached are the Network Traffic Lost Mileage (TLM) reports for the last 12 months from October 2018 to September 2019. This shows the volume of lost mileage due to traffic delays, which is presented by route and concluded with a summary of the information provided.

Please note that:

• This summarises all traffic lost miles, including those at the beginning and in the middle of trips;

• Trip curtailments do not always occur due to traffic delays. For example, mechanical faults, road closures and various events outside of bus operations control may also trigger the shortening of a service.

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
Information Governance
Transport For London

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