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Image credit: John Angerson

West of England Regional Transport Model

The West of England Regional Transport Model (WERTM) has been developed to enable a better understanding of movements throughout the region.

WERTM is a strategic transport model for the West of England and incorporates the following suite of models:

  • A Highway Assignment Model (HAM) in SATURN software
  • A Public Transport Assignment Model (PTAM) in VISUM software
  • A Variable Demand Model (VDM) in VISUM software.

WERTM is available to public authorities, developers and other third parties. If you would like to discuss using the model for your project, please get in touch with the Transport Strategy team via