Table 2:

Task repetitions, mean repetitions per participant, lane departures, and durations of departures by usage group in the baseline and post-use periods.

	Baseline			Post-use
Group	Task Repetitions (average)	Departures (%)	Mean Departure Duration (s)	Task Repetitions (average)	Departures (%)	Mean Departure Duration (s)
No use (n = 30)	95 (3.4)	19 (20.0%)	2.68	95 (3.2)	15 (15.3%)	2.35
Occasional (n = 24)	53 (2.9)	5 (9.4%)	1.93	60 (3.0)	17 (28.3%)	2.09
Daily (n = 31)	90 (3.0)	10 (11.1%)	1.64	83 (2.9)	11 (13.3%)	2.20
Total	238	34 (14.3%)	2.26	238	43 (18.1%)	2.21