TfL Ref: FOI-0086-2021 Thank you for your request received by Transport for London (TfL) on 14 April 2021. 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: Please can you provide data from any traffic lights enabled with SCOOT (Split Cycle Offset Optimisation Technique) from roads in the Clissold area of Stoke Newington, N16. This may include junctions at: Newington Green / Albion Rd Church St / A10 Newington Green / Green Lanes Graphs of the last 24 months for congestion and flow would be most appreciated. Please find the SCOOT data attached. Please note SCOOT flows may differ from other validated counts as the SCOOT system utilises loop occupancy as its primary source of data. This is then modelled into a flow count via an average occupancy per vehicle. This is often sensitive to over or under saturation, e.g. when vehicles are sat over the detector for long period of time such as in congestion queuing at the lights. The detectors are often sited at a distance from the junction where this is minimised, but sometime especially when junctions are close together this issue is exaggerated. Therefore SCOOT flow should be used more to generalise trend of demands and not actual counts. SCOOT congestion data is recorded based upon the percentage of time the detector is registering activity without breaks (suggesting a vehicle is stationary upon it). Please see explanation of what each column refers to within the spreadsheet: • SCOOTNodeID – Refers to the SCOOT Junction ID • NodeDescription – A brief description of the location of the Junction typically by road name • Latitude – The position of the junction along the North/South plane • Longitude – The position of the junction along the East/West plane • NumberOfLinks – Refers to the number of SCOOT links which approach the Junction • Date – The date of the data • TwentyFourHourVehicleFlowTotal – The total flow observed within a 24 hour period across all links approaching the junction • FlowDataCompletenessPercentage – Refers to the availability of data; 100% is a complete dataset. • AverageCongestionPercentage – The average congestion within a 24 hour period across all links approaching the junction • CongestionDataCompletenessPercentage – Refers to the availability of data; 100% is a complete dataset If you are considering submitting a further request please think carefully about whether the request is essential at this current time, as answering FOI/EIR 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 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 Eva Hextall FOI Case Management Team General Counsel Transport for London

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