How Do Drivers Hold Their Phone? Age, Prevalence, & Handedness

Objective Research shows frequent mobile phone use in vehicles but says little regarding how drivers hold their phone. This knowledge would inform countermeasures and benefit law enforcement in detecting phone use. Methods 934 participants were surveyed over phone-use prevalence, handedness, traffic-direction, and where they held their device. Results The majority (66%) reported using their phone while driving. Younger drivers were more likely to use their device. Of device-users, 67% preferred their passenger-side hand, 25% driver-side, and 8% both. Height- wise: 22% held in-lap, 52% even with the wheel, and 22% at wheel-top. Older drivers were more likely to hold the phone in the highest position The three most popular combinations were passenger-middle (35%), passenger-low (19%), and passenger-high (13.9%). There was insufficient evidence of differences based on handedness, prevalence, or traffic-direction. Conclusion Driver-preferred attention regions often require substantial neck flexion and eye-movement, which facilitates distraction detection. However, behavior may change in response to future interventions.

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Resistance against Cyber-Surveillance within Social Movements and how Surveillance Adapts

Surveillance & Society ◽

10.24908/ss.v9i4.4345 ◽

2012 ◽

Vol 9 (4) ◽

pp. 441-456 ◽

Cited By ~ 9

Author(s):

Oliver Leistert

Keyword(s):

Law Enforcement ◽

Mobile Phone ◽

German Law ◽

Mobile Telephony ◽

Mutual Relationship ◽

Law Enforcement Agencies ◽

Meta Data ◽

Mobile Phone Use ◽

The World ◽

Privacy Enhancing Technologies

Activists around the world have developed practices and are taking distinct measures to resist cyber-surveillance. These range from using code words and taking out mobile phone batteries during meetings to the use of privacy enhancing technologies. This article discusses such measures by providing interviews with activists from a variety of countries, as well as by analyzing documents from German law enforcement agencies in a recent case against activists. These documents reveal that the meta-data produced via mobile telephony is at least as important for law enforcement as the content of the calls. Furthermore, if there is not enough meta-data, law enforcement will produce it to get to know the whereabouts of activists. This article thus argues that a mutual relationship between resistance and surveillance unfolds as one side reacts to the practices of the other: as soon as activists advance in the protection of their contents of telecommunication, the surveilling parties concentrate on meta-data to explore the whereabouts of their targets. To counter this threat only the discontinuation of mobile phone use has been articulated.

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Effects of Chair Support on Biomechanical Exposures on the Neck During Mobile Phone Use

Proceedings of the Human Factors and Ergonomics Society Annual Meeting ◽

10.1177/1541931218621218 ◽

2018 ◽

Vol 62 (1) ◽

pp. 948-951 ◽

Cited By ~ 1

Author(s):

Jaejin Hwang ◽

Kartheek Reddy Syamala ◽

Ravi Charan Ailneni ◽

Jeong Ho Kim

Keyword(s):

Mobile Phone ◽

Muscle Activity ◽

Repeated Measures ◽

Flexion Angle ◽

Neck Flexion ◽

Mobile Phone Use ◽

Upper Trapezius ◽

Splenius Capitis ◽

Gravitational Moment ◽

Head Neck

The goal of this study was to evaluate how chair support (armrest and back support) affect the head/neck kinematics and muscle activity as compared to no chair support among four different phone positions (eye, chest, lap, and self-selected level). In a repeated-measures laboratory experiment with 20 subjects (10 males and 10 females), we measured head/neck flexion angle, gravitational moment and muscle activity in upper trapezius (TRAP) and splenius capitis (SPL). The results showed that chair support significantly reduced the head/neck flexion (p’s < 0.001), gravitational moment (p < 0.001), and muscle activity in TRAP and SPL (p’s < 0.001). With chair support, holding a phone at self-selected levels resulted in the largest reduction in head/neck flexion angle and gravitational moment while the eye-level location showed the lowest neck/shoulder muscle activity. The study findings indicate that the mobile phone use with adequate chair support may significantly reduce the physical stress in the neck and shoulder regions as compared to no chair support.

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