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 18 August

Improvements at the roundabout are continuing to progress this week, with all scheduled tactile paving, drainage, kerb and edging works now completed. The team have also installed the permanent pedestrian signal poles but these will be bagged until they are activated at the end of the works.

Pedestrian access between Hills Road and Fendon Road is currently closed, with a safe and well-marked diversion in place.

The planned works for w/c 25 August include:

  • The closure of the eastern footpath on Fendon Road toward Hills Road South, with diversions updated accordingly.
  • The beginning of enabling works for the removal and resurfacing of the traffic island on Hills Road South to allow for improved vehicle access.
  • The application of new white lining to realign the carriageway following the island removal.

We are aware of the burst water main on A1307 Hills Road which Cambridge Water are currently working to fix. Ongoing updates can be found on their website - Cambridge Water. There is no disruption expected to our works on the roundabout.

We remain committed to ensuring works are delivered efficiently while minimising disruption and would like to thank you for your continued patience and support.

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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 July 2025

Addenbrooke’s roundabout updated design

Addenbrooke’s roundabout consultation documents