PTV Visum - Frequently Asked Questions (FAQs)
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The procedure TFlowFuzzy failed. The demand matrix could not be corrected:
'Demand segment .. was assigned but no paths were saved.
Procedure 'TFlowFuzzy' failed.'
To find a solution, make sure the setting for
Calculate -> General Procedure settings -> PrT settings -> Assignment -> Save paths
is set to 'As routes' (for the combination with a static assignment).