Question to the Department for Transport:

To ask the Secretary of State for Transport, with reference to the oral statement by her of 8 July 2025 on Road and Rail Projects, Official Report, column 815, if she will publish the (a) full detailed Green Book analysis, (b) costs and (c) benefits cost ratios for (i) each of the 50 schemes announced in that speech and (ii) the A12 widening scheme.

Business case documents, costs and benefit cost ratios for major schemes, including for the Strategic Road Network and for relevant schemes in the Rail Network Enhancement Pipeline are published on gov.uk.

For the A12 (Chelmsford to A120) widening scheme, information is already available on the Planning Inspectorate’s website.

For the wider set of 50 schemes referenced in the Secretary of State’s statement on 8 July 2025, detailed Green Book analyses, costs, and benefit cost ratios for each scheme have not been published as a single package.

The scheme-level business cases and economic assessments for projects in the Government Major Projects Portfolio are published as they are finalised and reach the appropriate stage in the investment process. Summary information on costs and benefit cost ratios for major transport schemes may also be found in the Department for Transport’s Major Projects Portfolio, available at: https://www.gov.uk/government/collections/major-projects-data

In the case of Major Road Network schemes, the business cases belong to the relevant local authorities. Whilst we encourage them to publish these, it is their decision whether to publish their business cases on their respective websites.

As each scheme progresses, further documentation is released and made available on gov.uk as appropriate. The Government is committed to transparency and will continue to make business case documents available in line with Green Book and Treasury guidance as schemes move forward.