ETI-8 Response Accepted in Part

Update Optimism Bias Guidance

Recommendation

Optimism bias guidance, based on decades-old data, requires updating to include light rail projects and reflect current empirical evidence, with reviews every five years.

Jurisdiction
Scotland
Response
Accepted in Part
Accepted in Part Scottish Government
02 Nov 2023

The Scottish Government stated it already operates in line with best practices but will consider updating guidance. Source: Transport Secretary Statement, 2 November 2023.

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Progress Timeline
Official Report
02 Nov 2023

Initial status based on Scottish Government and City of Edinburgh Council responses to the Edinburgh Tram Inquiry Report (September 2023).

Source
Report Edinburgh Tram Inquiry Report 12 Sep 2023
Responsible Bodies
Scottish Government Primary
Recommendation age 2.5 yrs
Last formal update 873 days ago