FOI request detail

Performance (timeliness) of Bus Route 332

Request ID: FOI-1753-2021
Date published: 31 December 2020

You asked

My request refers to the performance of the 332 bus route from Brent Park to Paddington. This service is persistently late forcing users like myself to often wait more than 25 minutes for a service. I would like to be provided with statistics that show how often the 332 Bus route from Brent Park to Paddington is late departing Brent Park, its start point going south. I would like to be provided with statistics that show how often the 332 is late arriving to Paddington, its southbound terminus. This information would ideally be expressed as a percentage as well as the total number of segments that are late. I also request to see any correspondence between TfL and Metroline discussing late and delayed operating service on the 332 bus route from the pas 12 months. I request to see any performance data that Metroline provides to TfL with respect to the operation of the 332 bus route.

We answered

Our ref: FOI-1753-2021/GH

Thank you for your request received by Transport for London (TfL) on 2 December 2020 asking for information about the performance of Bus Route 332.

Your request has been considered under the requirements of the Freedom of Information Act 2000 and our information access policy. I can confirm that we do hold some of the information you require.

Please find attached a spreadsheet showing route 332 daily reliability stats across the recent 13 finalised periods (P09 19/20 – P08 20/21). The reliability data is only available for both directions.

Route 332 is a High Frequency route. The High Frequency routes are monitored to run at equal(ish) intervals. No Low Frequency stats (e.g. % On Time) is available for High Frequency routes.

The summarised data shows Excess Wait Time (EWT) as the main measure. The EWT denotes how many minutes (on average) customers have to wait on top of Scheduled Wait Time (SWT).

The last few columns show Probability of Waiting > x minutes. This measure compliments the EWT and shows the percentage chance of a customer waiting longer than x minutes for a bus.

The Long Gaps measure behaves in a similar way to Probability of Waiting. It shows the percentage chance of a customer waiting longer than 4 times SWT minutes for a bus.

The file also contains two worksheets (one per direction) with actual departure times from each stop (across) by each trip (down).

The scheduled departure times from the first stops and scheduled arrival times at the last stops are provided in columns E and F.

Any stops segments not captured by iBus are clearly marked with ‘Operated’ or ‘Lost’ comments.

Route 332 has met it Minimum Performance Standard (MPS) in the last 16 out of 17 periods (the table attached illustrates this). This route is not a poor performer and we have not had any correspondence from Metroline discussing the 332 performance.

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

If you are considering submitting a further FOI request please think carefully about whether the request is essential at this current time, as answering FOI requests will require the use of limited resources and the attention of staff who could be supporting other essential activity. Where requests are made, please note that our response time may be impacted by the current situation.

If you are not satisfied with this response please see the attached information sheet for details of your right to appeal.

Yours sincerely

Graham Hurt

FOI Case Officer

FOI Case Management Team

General Counsel

Transport for London


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