详情

当前位置：首页> 国外交通科技报告数据库 >详情

原文传递 Examiniation of the Distraction Effects of Wireless Phone Interfaces Using the National Advanced Driving Simulator-Final Report on a Freeway Study.

题名：	Examiniation of the Distraction Effects of Wireless Phone Interfaces Using the National Advanced Driving Simulator-Final Report on a Freeway Study.
作者：	AHMAD, O.; MAZZAE, E. N.; PAPELIS, Y. E.; RANNEY, T.; WATSON, G. S.; WIGHTMAN, J. R.
关键词：	Drivers-; Driving-simulators.;Driving-simulation-research; Traffic-safety; Computerized-simulation; Transportation-research.
摘要：	The report describes research to investigate the effects of wireless phone use on driving performance and behavior. The main objectives were to assess: (1) the distraction potential of wireless phone use while driving, and (2) the difference in distraction caused by the use of a Hands-Free wireless phone interface versus that associated with use of a Hand-Held interface. This research was conducted by NHTSA using the National Advanced Driving Simulator (NADS) in collaboration with NADS staff. Driving performance was examined in four events, including: (1) car-following, (2) lead-vehicle braking, (3) lead-vehicle cut in, and (4) merging. Phone conversation impaired performance most consistently during car following, resulting in an increase of approximately 0.3 to 0.4 seconds in drivers delay in responding to lead-vehicle speed changes, relative to performance without phone conversation. Steering entropy (error) also increased during phone conversation in car-following events, reflecting an increase in high-frequency steering corrections. Increased steering reversal rates indicated increased workload during phone conversation. There was little evidence of performance impairment due to phone conversation for the other three events. Neither the lead-vehicle braking nor lead-vehicle cut-in events exhibited the predicted slowing in accelerator release and brake response times. The merge event also did not provide consistent evidence of degraded performance due to phone use generally, with the notable exception based on analysis of eye glance data, that while engaged in phone conversation, drivers devoted less visual attention to planning for an upcoming merge event. Older and younger drivers did not exhibit consistently degraded driving performance due to phone conversation than middle-aged drivers. There were modest differences among interface conditions. Specifically: (1) Hand-Held phone use interfered with steering and lane control more than the Voice Digit Dialing with Speaker Kit Hands-Free interface, and (2) the Voice Digit Dialing with Speaker Kit Hands-Free interface was associated with faster travel speeds than the Hand-Held interface. Differences between interface conditions were stronger for dialing and answering than for conversation. The Hand-Held interface was associated with fastest dialing times and fewest dialing errors while voice dialing was associated with fastest answering and hang-up times. No differences among interface conditions in phone conversation task performance were found. Post-drive questionnaire results showed that in most cases participants overestimated the ease of use afforded by Hands-Free phone interfaces. In general, participants considered the Hand-Held interface to be most difficult to use, followed by the Headset Hands-Free and Voice Digit Dialing with Speaker Kit Hands-Free interfaces, respectively.
报告类型：	科技报告