Decision details

Background
The project was initiated in 2022 and is focused on renewal of the existing traffic signal control infrastructure as the junction is currently the worst condition traffic signal site amongst CYC assets and is 27 years old.

The project is currently intended for delivery in early 2026 with an anticipated cost of £165k.

Preliminary designs for alternative refurbishment options including reallocation of existing carriageway space to Active Travel modes were compiled and subject to transport modelling and review by CYC officers but were not recommended for delivery at this time due to potential impacts on wider Local Transport Strategy aims.

Decision:
To approve works at the junction of Fossbank/Foss Islands Road/Layerthorpe/Peasholme Green including:

• Replacement of all traffic signal equipment including, controller, traffic signal heads, detection (AI TCams), poles and cabling.
• Convert to an ELV / LED site
• Reuse of existing ducting work.
• Installation of NAL sockets for all traffic signal poles and plumb into existing duct network.
• Retention of far side pedestrian crossing technology
• Reuse of existing site fibre communications link
• Reuse of existing site power supply

The reason for these works being to ensure that the junction can continue to be operated effectively.

Options Considered:
Proceed to Detailed Design and Delivery Phases for the works outlined below.

Proposed Works
The proposed design is a standard refurbishment of the existing traffic signal equipment at the junction. The works proposed for the site are:

• Replace all traffic signal equipment including, controller, traffic signal heads, detection (AI TCams), poles and cabling.
• Convert to an ELV / LED site thus significantly reducing our costs in terms of energy and maintenance.
• Reuse of existing duct work.
• Install NAL sockets for all traffic signal poles and plumb into existing duct network.
• Retain far side pedestrian crossing technology
• Reuse existing site fibre communications link
• Reuse existing power supply

Taking these steps ensures the ongoing operational function of the junction, reducing the risk of asset failure and also providing benefits with regards reduced energy consumption of the equipment. Works undertaken will not result in significant abortive costs as all equipment to be installed can be reused as part of future works at either this junction or at other signal controlled locations across the city.

Do nothing. Rejected due to the life expired nature of the equipment on this section of the Inner Ring Road which is now difficult and costly to maintain and needs to be refurbished.

Proceed with a design option which includes amendments to the layout/civils infrastructure elements of the junction and signal phasing arrangements. Rejected due to:
• the potential impacts of these changes on existing proposals relating to both the Local Transport Strategy and Bus Service Improvement Plan
• potential future revisions to the land use of the Fossbank retail site and the resulting network capacity demands generated by the site.