Table A1.

Description of Hazardous events – hwy and residential drive

Highway drive
Task	Description
1a	Participant approaches unsignalised intersection; vehicle enters intersection from the right, failing to yield;
1b	Participant approaches unsignalised intersection Utility vehicle in front brakes suddenly, turns left;
2	Several vehicles slow in right lane and signal for a right turn to enter service station, and stop in right lane of highway; driver must move into left lane to pass stationary vehicles turning right;
3	Vehicle turns from petrol station on the right side of road into the right lane adjacent to driver; participant’s view of the vehicle is obscured until passes vehicles stopped in right lane. Vehicle tracks ahead of participant at same speed until 100m prior to lanes merging;
4	One truck parked on shoulder of the right lane, a second truck in oncoming traffic turns left, encroaching on the participant’s lane;
5	A motorcycle overtakes on a curve and pulls into the lane in front of the participant, brakes, and then accelerates.
Residential drive
6	A truck travelling from right encroaches on the participant’s lane when the truck is turning left into oncoming traffic;
7	A 4WD is stopped at the roadside and a vehicle pulls out from a driveway just ahead of the parked 4WD; At same time, a car in oncoming traffic passes in right lane;
8	A vehicle turns into the road ahead from the left, suddenly brakes and then accelerates ahead;
9	A pedestrian appears from the right at an intersection and proceeds to cross the road in front of the participant.
10	A motorcycle approaching suddenly turns right in front of the participant, failing to give way.
11	Participant turns right at a Y-intersection, selecting one of three possible gaps in oncoming traffic (3,5,9 sec)