Table 2.

Description of distraction operations.

Task	Sub-Operations	Description	Judging Criteria
Hand-held call	Answering	Check the incoming call with one hand and prepare the call.	Driver’s line of sight starts to move.
	Dialing	Click the screen with one hand to dial.	Driver’s line of sight starts to move.
	Talking and listening	Drive with one hand and communicate with a phone.	Put the phone at the ear.
	Hanging up	Stop talking and put the phone down with one hand.	Put the phone away from the ear.
View information	Viewing	Click on the screen with one hand to browse information. Keep eyes off the road for a long time.	Driver’s line of sight starts to move.