Table 1.

Comparison of trained and untrained groups on individual scenarios: Field study^*.

	Scenario†	Name	Performance in Trained Group	Performance in Untrained Group	Difference Between Trained and Untrained
Near Transfer	1	Left Fork	50.0%	18.2%	31.8%
	3	Right Turn (Reveal)	75.0%	58.3%	16.7%
	4	Left Turn (Reveal)	100.0%	41.7%	58.3%
	8	Abrupt Lane Change	55.0%	25.0%	30.0%
	9	Hidden Sidewalk	75.0%	25.0%	50.0%
Far Transfer	2	Blind Driveway	36.4%	8.3%	28.0%
	5	Truck Blocking Crosswalk	28.8%	4.2%	24.6%
	6	Hidden Drive	20.0%	36.4%	−16.4%
	7	Curve Stop Ahead	62.5%	57.1%	5.4%
	10	Truck Blocking Travel	90.0%	62.5%	27.5%

^*The average of the scenarios is not exactly the same as the average over participants reported in the text because of missing data cells.

^†The numbering of the scenarios is the same as those on website www.ecs.umass.edu/hpl