Samenvatting
The aim of the study presented was to assess the effects of lorry driver loading or unloading on subsequent driver alertness and to measure and document lorry drivers' performance on a 14-hours-on (with 12 hours driving)/10-hours-off daytime schedule coupled with a weekend recovery process over a 58-hour off-duty period between two successive weeks of simulated driving. Measurements of probe performance, cognitive errors, lane performance and gear performance was carried out. Sleep patterns, sleep latency and subjective sleepiness was also measured in order to assess the effect of the rest and recovery required to re-establish alertness and fitness for duty.