Carbon Account for Transport




3.The Climate Change (Annual Targets) (Scotland) Order 2010, SSI 2010 no.359




7. The Second Report on Proposals and Policies

8. Scotland's National Transport Strategy (2006), The Scottish Executive.


10. Greenhouse Gas Inventory for England, Scotland, Wales and Northern Ireland: 1990-2012, AEA Technology;

11. While not relevant to the transport sector, the full inventory includes the three other greenhouse gases - Hydrofluorocarbons (HFCs) Perfluorocarbons (PFCs) and Sulphur hexafluoride (SF6).

12. This calculation uses the unadjusted Scottish emissions total for 2013- i.e. excluding the impact of the EU Emissions Trading System (ETS). Including the ETS would lower Scotland's net emissions total and it is this adjusted total that is used in assessing Scotland's performance under the Climate Change (Scotland) Act.

13. Includes national navigation and international shipping

14. Source: Scottish Transport Statistics, No 33, 2014 Edition, Table 7.1

15. For a full definition of exact vehicle types see: DfT vehicle definitions

16. Rural areas are defined as major and minor roads outside urban areas. Urban areas are defined as having a population of more than 10,000 people. Motorways are a separate classification.

17. Emissions per passenger kilometre are calculated as the distance a vehicle travels and its fuel efficiency divided by the number of occupants travelling that distance.

18. 2014 Government GHG Conversion Factors for Company Reporting

Company reporting guidelines

19. All car figures assume an average car occupancy rate of 1.51 passengers based on the latest Household Survey Travel Diary. Bus and coach figures assume an average vehicle occupancy rate based on Guidelines to Defra/DECC's GHG Conversion Factors for Company Reporting.


21. Transport Scotland

22. CAA aircraft movement data

23. UK 2014 provisional GHG emissions estimate

24. DUKES Table 3.2

25. Source: AA forecourt pump prices in Scotland

26. Design Manual for Roads and Bridges (2009): Highways Agency Design Manual for Roads and Bridges (DMRB)

27. Rail Emission Model (2001), AEA Technology Environment

28. Emissions figures have been updated since 2010 publication from Carbon emissions to CO2 emissions.

29. To be consistent with the scope of this document, these figures (both the average annual savings and the cumulative savings) relate to emissions in the transport sector only and exclude increased emissions in the electricity production and distribution sector associated with electrification. However, the estimated net impact at the overall Scottish level, even including these emissions, is to lower emissions over the longer term



32. Flights from Highland and Island airports are excluded

33. Estimate of the Impact on Emissions of a Reduction in Air Passenger Duty in Scotland | Transport Scotland

34. The impacts from both VED and company car tax contribute to the delivery of the savings from the EU regulation on CO2 from cars, as opposed to representing additional savings.

35. Including those measures whose expected emissions impacts has not been quantified on an individual basis, e.g. Freight Facilities Grant.

36. The reduction in emissions within the non-traded sector that are a result of EGIP have been added to the modelled output, as these benefits sit outside the scope of the modelling framework.