摘要: |
The experimental work that was done in this project required that a set of in-vehicle tasks be selected for study. A sound methodology was needed to choose for which tasks should be included in the research to evaluate appropriate driver workload metrics. The methodology or framework had to allow predictions to be derived about how demanding and/or interfering a task was likely to be when it was performed concurrently with driving. It also needed to allow these predictions to be derived in a way that was independent from the measures of driving performance that were also being obtained. That is, the measures of driving performance were to be used to confirm whether or not the findings on surrogate measures were correctly predicting task loading and/or interference. Were tasks that were supposed to be high in distraction potential in fact observed to be high on driving performance measures. And did surrogate measures similarly assess them to be high. |