Harrow Council, in partnership with TfL, completed the installation of new signal equipment and linking of signals via SCOOT (Split Cycle Offset Optimisation Technique) to improve traffic flow; they are now monitoring the performance and will review the feasibility of introducing a dedicated pedestrian phase. (AI summary)
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The report concluded that the introduction of a dedicated pedestrian phase would significantly increase traffic delays and congestion with a consequent risk to safety, including surrounding residential roads being used as short cuts which already carried a significant volume of traffic. This view was supported by TfL's signals unit who confirmed that significant delays on all arms vould occur at the junction if a dedicated all-red phase was introduced. TfL would not support the introduction of a scheme which would cause more delays to this part of the strategic route network and consequently a scheme could not be taken forward. In order to pursue this issue further the council met with TfL to discuss other options for improving pedestrian facilities at the junction. TfL suggested linking the existing traffic signals at Church Road, Stanmore Hill junction, The Broadway (pelican crossing) and Marsh Lane junction so that they were synchronised in order to improve their performance. This approach would smooth traffic flows and give us the opportunity to see whether any improvements in traffic flow and capacity would make it possible to consider an all red pedestrian phase at the Stanmore Hill junction without the previously mentioned drawbacks. TfL agreed to fund the project as part of the council’s Local Implementation Plan and the installation of new the signal equipment and linking of the signals via SCOOT (Split Cycle Offset Optimisation Technique) was completed by the end of March 2013. SCOOT is a tool for managing and controlling traffic signals in urban areas. It is an adaptive system that responds automatically to fluctuations in traffic flow through the use of on-street detectors which are embedded in the road. Now that these works have been completed we are monitoring the performance of the signals and the impact on congestion and journey times. We will shortly be reviewing the Stanmore Hill junction again to see if introducing a dedicated pedestrian phase at the Stanmore Hill junction is feasible and acceptable to TfL. Since the receipt of your letter we have also opened up dialogue with TfL regarding the decision to remove the secondary signal and asked that a review of this decision is undertaken. However, the installation of a pedestrian phase is still the Council’s preferred method of resolving this matter. I trust you can appreciate that the council has been taking all necessary actions available to pursue the installation of a pedestrian phase at these signals over recent years and that we are continuing to pursue this matter with TfL to achieve a satisfactory resolution for the local community.