MyEDC

    Technical Notes 2025, Issue 80 - Canniesburn Toll Improvement Project – Project update

    • Report by:

      Ann Davie, Chief Executive

    • TN Number:

      080-25

    • Subject:

      Canniesburn Toll Improvement Project – Project update

    • Responsible Officer:

      Heather Holland, Chief Planning Officer Executive Officer - Land Planning & Development

    • Publication:

      This Technical Note will be published on the Council’s website following circulation to Members. Its contents may be disclosed or shared out with the Council.

    • The motion presented at Council in December 2024 in relation to the Canniesburn Toll Improvement Project (‘the Project’), agreed monitoring to be undertaken to examine the operation of the roundabout post completion. The monitoring work will be undertaken and the findings presented in a report to a future meeting of Council
    • The professional advice given by consultant transport engineers and Officer opinion is the optimum time to conduct the monitoring is November 2025. This provides adequate time for the improvements to the roundabout to bed in (twelve months), and it also aligns with previous pre-construction data which was gathered previously in the month of November. In addition, there are a range of works planned on the road network (not related to the Project) near the roundabout over the course of 2025. This would impact data gathered from the network and the roundabout. Currently the latter part of September 2025 has no works planned in the area, and this provides the best opportunity in 2025 to undertake the monitoring work. The monitoring is being programmed to take place over this period.
    • In the meantime, this Technical Note provides Elected Members with an update on the Project, and an overview of the costs of the Project
    • The works are now complete and new signalised lights are in operation. The Project delivered a long-term commitment included as a condition of the planning consent for the Kilmardinny Masterplan in Bearsden. Canniesburn Toll roundabout is a key part of the local transport network that is heavily used and connects four busy A-roads.
      The roundabout had to remain open to traffic through the majority of the construction stage, with temporary closures in place through many parts of the construction programme. This provided for a challenging site, with the need to balance operative safety and support traffic through flow as much as practical.  The original construction programme was 9 months – starting 31 July 2023 to complete 30 April 2024). This did not account for the additional works and re-design required due to unrecorded utilities. Overall construction took fifteen months from start to practical completion, completing October 2024
    • The Project delivered a range of improvements including:
      • New traffic signals
      • Improved pedestrian and cycling infrastructure
      • Provision of new parking area to service existing businesses
      • Drainage systems upgrade
      • Upgrades to street lighting
      • Improved footway and carriageway surfaces.
    • The Project reached practical completion in October 2024 with the signals initially running on fixed timings to allow the Microprocessor Optimised Vehicle Actuation (MOVA) signal control time to calibrate. The MOVA became operational at the junction in November 2024. The Project is now in its defects period
    • A summary of the Project costs and funding steams are provided in the table below:

    price

    the construction costs and who funded
    Construction Cost funded by

    £2,310,981.85

    Land Equalisation Agreement £942,034.00.
    EDC Capital £900,000.00.
    Developer Contributions £118,947.85 and Transport Scotland
    Tier 1 – Active Travel Fund £350,000

    Design, management and NEC supervisor costs

    Funded by

    £460,666.02

    A81 Developer Contributions.

    Transport Scotland Cycling, Walking & Safer Routes. Transport Scotland Tier 1 Active Travel Fund

    TOTAL PROJECT COST

    £2,771,647.87
    •  The construction contract was entered into in early 2023 at a value of £1.59m. A construction budget of £2.3m was identified which included contingency. Post Project completion the construction cost concluded at £2.31m
    • The primary driver of the increased cost during construction stage of the Project was due to the presence of unrecorded utility apparatus. Early pre-construction engagement with the various utility providers was undertaken as part of the design process. Designs were agreed with utility providers in line with their utility plan records and requirements. In addition, radar surveys were commissioned as part of the Project. This work was completed well in advance of construction start. The construction stage exposed a complex subterranean area, and utilities present did not align in some instances with utility company records. This required re-design for elements of the utility provision in the construction stage. This led to programme changes and associated increase in costs.

    Next steps

    • Complete any required defects works and conclude the defects period, targeted for the end of 2025
    • Officers will continue to provide any further updates via Technical Notes, if required. This Technical Note will be added to the Project webpage for information
    • Monitoring work and associated reporting will be undertaken later in 2025 and be followed by a Report to Council.