TAG unit A1-3 user and provider impacts
Transport Analysisanalysis Guidanceguidance (TAG) on the analysis of user and provider impacts in transport appraisals.
- From:
- Department for Transport
- Published
- 28 March 2017
- Last updated
-
3028MayNovember20222024 — See all updates
Documents

TAG unit A1.3A1-3 user and provider impacts
PDF, 663622 KB, 35 pages
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TAG unit A1-3 user and provider impacts, including forthcoming changes for May 2025
PDF, 677 KB, 49 pages
This file may not be suitable for users of assistive technology.
Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email webmasterdft@dft.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.
Forthcoming change: base year update
https://www.gov.uk/government/publications/tag-forthcoming-changes/forthcoming-change-base-year-update
Forthcoming change: operating cost parameters
https://www.gov.uk/government/publications/tag-forthcoming-changes/forthcoming-change-operating-cost-parameters
Details
This document gives guidance on the analysis of user and provider impacts in transport appraisals.
The previous version of this unitguidance was published in July 2021.2021.
TAG provides information on the role of transport modelling and appraisal, and how the transport appraisal process supports the development of investment decisions and business cases.
Updates to this page
Published 28 March 2017
Last updated 3028 MayNovember 20222024
+ show all updates
-
Updated with forthcoming changes for May 2025.
-
Unit A1.3 guidance updated.
-
Forthcoming change to guidance note added, the note details guidance alterations to be implemented in May 2022.
-
Updated with latest version of unit A1-3 guidance.
-
Two forthcoming change documents regarding emissions and fuel cost curves plus vehicle kilometer splits for cars added.
-
PDF, 663622 KB, 35 pages
This file may not be suitable for users of assistive technology.
Request an accessible format.
If you use assistive technology (such as a screen reader) and need a
version of this document in a more accessible format, please email webmasterdft@dft.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.
TAG unit A1-3 user and provider impacts, including forthcoming changes for May 2025
PDF, 677 KB, 49 pages
This file may not be suitable for users of assistive technology.
Request an accessible format.
Forthcoming change: base year update
https://www.gov.uk/government/publications/tag-forthcoming-changes/forthcoming-change-base-year-update
Forthcoming change: operating cost parameters
https://www.gov.uk/government/publications/tag-forthcoming-changes/forthcoming-change-operating-cost-parameters
Details
This document gives guidance on the analysis of user and provider impacts in transport appraisals.
The previous version of this unitguidance was published in July 2021.2021.
TAG provides information on the role of transport modelling and appraisal, and how the transport appraisal process supports the development of investment decisions and business cases.
Updates to this page
Last updated
-
Updated with forthcoming changes for May 2025.
-
Unit A1.3 guidance updated.
-
Forthcoming change to guidance note added, the note details guidance alterations to be implemented in May 2022.
-
Updated with latest version of unit A1-3 guidance.
-
Two forthcoming change documents regarding emissions and fuel cost curves plus vehicle kilometer splits for cars added.
Update history
2025-05-29 09:30
TAG unit A1-3 updated.
2025-04-17 09:30
Added ‘Forthcoming change: appraisal data update’.
2024-11-28 10:00
Updated with forthcoming changes for May 2025.
2022-05-30 09:30
Unit A1.3 guidance updated.
2022-04-29 11:09
Forthcoming change to guidance note added, the note details guidance alterations to be implemented in May 2022.