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Greater Wellington Regional Council (GWRC) re-validated the Wellington Transport Strategy Model (WTSM) from a 2011 to 2013 base year.

The subsequent stage of this project is the development of forecast versions of WTSM to reflect 2023, 2033 and 2043 scenarios.

Forecast versions of WTSM use input assumptions relating to variables such as fuel price, PT fares, parking costs and infrastructure investment, together with population, employment, household and school roll projections.