Reader’s guide

The following table defines key terms used in the ITF Transport Outlook 2023 including transport modes, transport policy measures and exogenous factors considered in each of the policy scenarios, scenario definitions and more.

The following table defines the regions referred to in the modelling for the ITF Transport Outlook 2023.


[1] Lyons, G. et al. (2015), Future Demand: How could or should our transport system evolve in order to support mobility in the future?, Te Manatū Waka Ministry of Transport, Wellington,

[3] OECD/European Commission (2020), Cities in the World: A New Perspective on Urbanisation, OECD Publishing, Paris,

[5] UN (n.d.), Net-Zero Coalition, (accessed on 5 May 2023).

[2] UN DESA (2019), World Urbanization Prospects: The 2018 Revision, UN Department of Economic and Social Affairs, Population Division, New York,

[4] World Bank (2022), World Development Indicators: Country Income Classifications, (accessed on 7 November 2022).

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