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Addenbrooke’s roundabout

Addenbrookes roundabout aerial view

Work on the Addenbrooke’s roundabout safety improvements started on Monday 12 May 2025.

The works aim to improve safety for people walking and cycling and provide a much easier to navigate roundabout with less risk to all users. 

The central island of the roundabout will be reduced to allow for the carriageway to be widened, which in turn will allow for paths and crossings to be widened for people walking and cycling.

The work will begin with overnight single-lane closures to allow traffic to continue to flow whilst works are completed. The roundabout will remain accessible from all directions during the works, and emergency services will not be affected.

Update: w/c 1 September

We would like to provide you with an update on the progress of works taking place at Addenbrookes’ roundabout this week.

During this period, the team have been working on:
• Kerb line works: Excavation and installation of the new kerb line, following the removal of the existing kerb line.
• Crossing point improvements: Installation of a new crossing point at the Fendon Road junction, including installing a new traffic signal pole and tactile paving.
• Shared footway surfacing: Asphalt installation for the new shared footway is planned for the end of this week and will continue next week (w/c 08.09), subject to weather conditions.

We will continue to monitor conditions closely to minimise disruption, and we appreciate your patience and cooperation while these essential works are delivered.

Designs

addenbrookes diagram

The designs reduce the size of the central island to accommodate the upgraded walking and cycling links, while retaining the width of the lanes in the road for motorised vehicles, with the roundabout being used at all times by emergency services.

The design reflects consultation feedback, with the reintroduction of the informal crossing point on the Fendon Road arm and an enhanced two stage crossing of the southern arm of the roundabout.

It's intended that the scheme will be implemented by the end of 2025, and on this basis it’s secured additional funding from our partners at the Cambridgeshire & Peterborough Combined Authority.

The consultation feedback report and updated design plans can be found below.

Pedestrian diversion 2025

Addenbrooke’s roundabout updated design

Addenbrooke’s roundabout consultation documents