Research and analysis

Values of travel time savings: understanding the uncertainty around the non-work values

A study to develop confidence intervals around the non-work values of travel time savings used in transport appraisal.


Advice on statistical confidence of appraisal values of non-work time

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This report estimates confidence intervals around the values of non-work travel time savings used in transport appraisal, based on the level of statistical confidence in the estimated parameters used to calculate the values.

Published 29 October 2013