Summative assessment of the A30 Chiverton to Carland Cross scheme

AMION recently completed an evaluation of the A30 Chiverton to Carland Cross scheme on behalf of National Highways. The evaluation was a collaboration between AMION’s Evaluation and Transport Economics teams.

The project was funded through the European Regional Development Fund and by National Highways and comprised a 14 kilometre dual carriageway connecting to the existing A30 dual carriageway at Chiverton Cross roundabout and Carland Cross junction. The project also comprised:

• replacement of Chiverton Cross roundabout with a new, two-level motorway style roundabout
• a new two-level partial junction at Chybucca with west-facing slip roads connecting to the new dual carriageway
• replacement of the existing roundabout at Carland Cross with a two-level motorway style junction
• new bridges and accesses across the new road and the old road.

AMION were commissioned to carry out an evaluation covering issues such as: strategic relevance of the project; extent to which outputs had been achieved; management and delivery; potential impacts and value for money; and identification of strengths and areas for improvement.

The evaluation involved discussions with a range of partners and stakeholders and found that the project has the potential to deliver substantial benefits to Cornwall. The project has already delivered a range of benefits to communities and businesses in Cornwall, for example through the use of local suppliers and staff during the construction phase and through a wide range of environmental innovations.