In the European ROADSENSE project, the question arose what can be measured in order to index driver workload and comfort. TNO Human Factors provides an overview of parameters that can be measured in order to assess driver workload and comfort. This report will be used as a basis for choosing parameters that are actually going to be measured in studies on the road. A literature study was conducted, in which classical and new methods for measuring workload and comfort, with specific emphasis to driving, were combined. Advantages and disadvantages of the methods are also discussed. The overview shows that much more is known about measuring workload than about measuring comfort. For workload, primary and secondary task performance can be used, as well as parameters that have to do with glance duration and glance frequency. Besides this, subjective measures and physiological measures are also suitable for measuring workload. For comfort, subjective ratings, as well as the proportion of high frequency steering can be used. (Author/publisher)
Abstract