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2021-22

A90 Spurryhillock Layby Embankment / Drainage – Drainage to stabilise the embankment and prevent slippage

A90 Dundee to Aberdeen Litter fences

The above figures exclude expenditure on the Aberdeen Western Peripheral Route / Balmedie to Tipperty section of the A90. The contract with the DBFO Company, Aberdeen Roads Limited (ARL) requires it to fulfil the contractual obligations in respect of maintenance at ARL’s own cost. These associated costs are not shared with Transport Scotland.

The Scottish Government also remains committed to delivering a new grade-separated junction on the A90 at Laurencekirk as part of the package of additional investment alongside the Aberdeen City Region Deal.

Transport Scotland has been taking forward the necessary design and assessment work, and the project is currently going through the statutory authorisation process, having recently published supplementary draft Orders for formal comment.

As with all infrastructure projects, delivery of the Laurencekirk scheme can only commence when the relevant statutory authorisation powers to do so have been secured. Following completion of the statutory authorisation process we will then be in a position to set a timetable for delivery of the scheme in line with available budgets.

In terms of spend for this scheme in the last five years we record £1,807,404.64

Transport Scotland follows published evaluation guidance for both rail and road projects. This includes frameworks for the evaluation of road and rail schemes and recommended timescales for each. These are typically at one-, three- and five-years following completion of projects. These reports and data sets are published on the Transport Scotland website and include evaluation of economic impact where relevant.

For projects out with rail and road schemes, Transport Scotland follows general evaluation guidance published by the UK Government which advises on evaluation following project completion. The evaluation approach is tailored to ensure it is proportionate to the scale of the project and will include evaluation of economic impacts where relevant. Reports and data sets from these evaluations are also published on the Transport Scotland website.

Monitoring and evaluation typically use a mixture of qualitative and quantitative methodologies to gather evidence and understand different aspects of an intervention’s operation, including economic impacts. These will vary and will be tailored to ensure measurement against the specific objectives of each project as opposed to adopting a singular approach.

In setting the criteria for evaluation, in addition to the particular objectives of the project, Transport Scotland refers to a range of published guidance which includes specific guidance on assessing economic impacts. This includes UK Government guidance on evaluation design and Transport Scotland guidance on evaluation of road and rail projects. These resources are publicly available on the UK and Scottish Government websites respectively.