ABSTRACT
We learnt from Chapter 8 that driver expectations of system operation can heavily influence the way in which drivers perceive a ‘new’ driving feature. The Technology Acceptance Model (Davis et al., 1989) postulates that while intentions to use a technology affect subsequent usage behaviour, the perceived ease of use (i.e. systems usability) is also likely to determine the intention to use. If, for example, drivers perceive an automated system to be confusing, they are less likely to use it. Previous literature has found that driver attitudes are more positive when automated assistance is available during otherwise monotonous driving situations (e.g. Fancher et al., 1998). For example, automated assistance on highways brings the added benefit of improving driver comfort and convenience (e.g. Saad and Villame, 1996). It is important therefore to explore the appropriateness and acceptability of a Driver-Initiated system of automation on subjective reports of driver stress and workload.
