The experts at JCT share knowledge on a variety of industry subjects, from useful ways to use LinSig 3 to their preferred practices when dealing with give ways.
The Danger of Relying on Queue Surveys for Model Calibration, and When is a Model Validated? (e.g. LinSig, ARCADY, PICADY)
> Filed Under: General
By Simon Swanston (JCT Consultancy Ltd)Date: 28th August 2026 Over recent years, I have become increasingly concerned that, in order to get traffic models accepted, some modellers have started adjusting model input parameters until the model queues match the queues recorded in a survey. I am also concerned that some model auditors appear to expect this to be done. The[…]
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