Effects of hands-free cellular phone conversational cognitive tasks on driving stability based on driving simulation experiment
| Autor: | YC Li, Wei Hao, Xuedong Yan, Sze Chun Wong, Wang Xiang, Wei Yan |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
050210 logistics & transportation
Elementary cognitive task Computer science media_common.quotation_subject 05 social sciences Driving simulator Poison control Transportation Task (computing) Phone Distraction 0502 economics and business Automotive Engineering Brake 0501 psychology and cognitive sciences Conversation human activities 050107 human factors Applied Psychology Simulation Civil and Structural Engineering media_common |
| Zdroj: | Transportation Research Part F: Traffic Psychology and Behaviour. 58:264-281 |
| ISSN: | 1369-8478 |
| DOI: | 10.1016/j.trf.2018.06.023 |
| Popis: | Driver distraction due to cellular phone usage is a major contributing factor to road crashes. This study compares the effects of conversational cognitive tasks using hands-free cellular phone on driving performance under three distraction conditions: (1) no distraction (no cellular conversation), (2) normal conversation (non-emotional cellular conversation), and (3) seven-level mathematical calculations. A car-following scenario was implemented using a driving simulator. Thirty young drivers with an average age of 24.1 years maintained a constant speed and distance between the subject vehicle and a leading vehicle on the driving simulator, and then respond to the leading vehicle’s emergency stop. The driving performances were assessed by collecting and statistically analyzing several variables of maneuver stability: the drivers’ brake reaction times, driving speed fluctuation, car-following distance undulation, and car-following time-headway undulation. The results revealed that normal conversation on a hands-free cellular phone impaired driving performance. The degree of impairment caused by normal calculation was equivalent to the distraction caused by Level 3 mathematical calculations according to the seven-level calculation baseline. The calculation difficulty of Level 3 is one double-digit figure plus a single-digit figure, and non-carry addition mental arithmetic is required, e.g., 44 + 4. The results indicated that an increase in the level of complexity of the calculation task was associated with an increase in brake reaction time. The seven-level calculation-task baseline could be applied to measure additional distraction effects on driving performance for further comparison. |
| Databáze: | OpenAIRE |
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