The effect of cellular phone use upon driver attention

Area of Science:

• Human-computer interaction
• Traffic safety research
• Cognitive psychology

Background:

• Distracted driving is a major cause of traffic accidents.
• Cellular phone use while driving is a prevalent and concerning distraction.
• The impact of different types of cellular phone distractions on driving performance requires further investigation, particularly concerning age-related differences.

Purpose of the Study:

• To investigate the impact of various cellular phone distractions on driving performance.
• To examine age-related differences in response to driving distractions.
• To compare the effects of different cellular phone tasks (calling, casual conversation, intense conversation) and radio tuning on driving response rates.

Main Methods:

• 150 subjects observed a simulated 25-minute highway driving video.
• Subjects responded to 45 traffic situations using simulated vehicle controls.
• Driving scenarios were presented under five conditions: no distraction, cellular phone call, casual conversation, intense conversation, and radio tuning.

Main Results:

• All distractions significantly increased the proportion of situations where subjects failed to respond.
• Drivers over age 50 showed a significant increase in nonresponses under all cellular phone distractions.
• Younger drivers' nonresponse rates increased less, except during intense cellular phone conversations.

Conclusions:

• Older drivers may reduce accident risk by avoiding cellular phone use during attention-demanding driving.
• All drivers, especially younger ones, should refrain from intense cellular phone conversations to mitigate risks.
• Driving performance is significantly impaired by cellular phone distractions, with notable age-related vulnerabilities.