Large Local Major Schemes

 

Large Local Major (LLM) schemes are road projects valued at over £50 million. Peninsula Transport has submitted three schemes to the Department for Transport (DfT) for consideration:

  • A38 Manadon Interchange

  • M5 Junction 28 (Cullompton)

  • A39 Walton Ashcott Bypass

Progress Update

The A38 Manadon Interchange has been approved by the DfT to move forward into the co-development phase.

A38 Manadon Junction

The Manadon Junction is one of the busiest on Plymouth’s road network, carrying more than 60,000 journeys every day. It serves as the key interchange between the A38 (from Cornwall to the west and Devon to the east) and the A386, which connects the northern growth corridor to the city centre and waterfront.

The Challenge

The junction, currently a grade-separated roundabout with a flyover, suffers from severe congestion at peak times, with queues frequently backing up onto the A38.

Proposed Improvements

The scheme includes:

  • Additional lanes on the A38 off-slips

  • Localised road widening on the local network

  • Pedestrian and cycle route upgrades

  • Bus priority measures

Together, these will increase junction capacity, improve traffic flow, and enhance access to the Strategic Road Network (SRN).

Wider Benefits

The improvements will also help unlock housing growth, supporting the delivery of 26,000 homes set out in the Joint Local Plan — including 4,000 homes in the Derriford/Northern Corridor and 3,800 homes in the City and Waterfront area.

     

    M5 Junction 28 Cullompton

    M5 Junction 28 is currently a single-bridge motorway junction, featuring a six-arm roundabout to the west and a signalised junction to the east. Pedestrian and cyclist crossing facilities are poor and limited.

    The Challenge

    • The junction is already close to capacity at peak times

    • Morning queues extend up to 500m, while evening congestion affects commuters returning to Cullompton

    • On occasion, queues extend back onto the M5 mainline, creating a serious safety risk

    Why Improvements Are Needed

    Upgrading the junction is essential to support planned growth identified in the Local Plan Review, including:

    • The first phase of Culm Garden Village – up to 5,000 new homes east of Cullompton

    • Over 50,000m² of employment floor space

    An improved junction will unlock housing and employment development, reduce congestion, and improve safety for all road users, including pedestrians and cyclists.

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