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 8 September

This week the team has been working on;

  • South-Eastern quadrant (between Fendon Road and Hills Road leading out of the city
    Temporary surfacing has been put down which will be planed off and redone once the streetlighting works are finished.
  • Fendon Road
    The work on new traffic island has been completed improving safety for all users.
  • A1307 island
    The existing island has been removed so we are ready for the construction of new kerbs next week.
  • Traffic Signals
    Excavation works for the new traffic signals have begun.

Looking ahead, the works scheduled for delivery in the coming week (15 September) is mainly focused on the A1307 island where we will be:

  • Installing tactile paving to improve pedestrian accessibility.
  • Installing the remaining kerbs to complete the island edging.
  • Constructing the new traffic island, building on the completed preparatory works.
  • Continuing the installation of new traffic signals

We will continue to provide further updates as the works advance and key stages are achieved. 

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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 2025

Addenbrooke’s roundabout updated design

Addenbrooke’s roundabout consultation documents