Research and analysis

National Transport Model: calibration and validation

Outlines the steps taken to recalibrate the updated National Transport Model.


NTMv2R demand model calibration and validation

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 Please tell us what format you need. It will help us if you say what assistive technology you use.


This report discusses the steps followed to recalibrate the National Transport Model (NTM) version 2. It also reports the results of realism tests to validate the recalibrated model.

Published 19 June 2018