- Five pilot studies have been conducted to assess participants'
performance on a number of tasks requiring visual attention,
vigilance and memory.
- Task difficulty was manipulated by increasing the number
of items processed.
- Baseline results will be used to assess the effect of
tasks requiring different levels of perceptual and cognitive
demand on driving performance.
- The experiments were designed to evaluate the interaction
between secondary tasks and driving.
- Two 'surrogate-IVIS' tasks were developed: One task
was designed to apply a systematic visual load ('Arrows'),
while the other examined the effect of a systematic non-visual
cognitive load on driving (auditory Continuous Memory
- The two surrogate IVIS tasks were tested across different
road types, using a range of driving simulators and instrumented
- The objective of this WP was to apply the methods used
in WP2 to a number of 'real' systems in order to recommend
a test regime for the safety assessment of IVIS
- To examine the utility of recognised checklists as part
of the test regime, the TRL checklist was used to evaluate
the selected systems.
- The scenarios and measures used in this WP were based
on the findings from WP2. For instance, following a meta-analysis
of the WP2 results, it was possible to draw conclusions
about the types of road environment and behavioural measure
that were most sensitive to changes in workload.