Updates to TAG
DfT recently announced forthcoming changes to the Transport Appraisal Guidance (TAG) to be published officially in the guidance in July 2021. This document provides an overview of the key updates.
The Department for Transport (DfT) recently announced forthcoming changes to the Transport Appraisal Guidance (TAG) to be published officially in the guidance in July 2021. These include changes to:
Optimism Bias
Appraisal period and residual values
Capturing Local context
Uncertainty toolkit
Landscape monetisation guidance
This document provides an overview of the key updates to DfT’s Transport Appraisal Guidance (TAG). These changes should be considered by towns appraising transport projects, especially the Economic Case.