TY - JOUR T1 - The survey of effect of cellphone conversation on drivers’ situation awareness and brake reaction time in Bus driving simulator TT - بررسی تاثیر تلفن همراه بر آگاهی موقیتی و زمان واکنش ترمز زدن رانندگان در شبیه ساز رانندگی اتوبوس JF - IOH JO - IOH VL - 11 IS - 6 UR - http://ioh.iums.ac.ir/article-1-1312-en.html Y1 - 2014 SP - 21 EP - 33 KW - Cell phone conversation KW - situation awareness KW - brake reaction time KW - bus driver N2 - Background and aims: Increasing use of cell phone while driving is actually part of a disturbing trend of technological impact on reducing the driver's attention. Using the phone during driving increase crash probability between 3 to 6.5 times. Cell Phone may deviate drivers’ attention of the driving and it lead to a reduction in driver's situation awareness. The present study investigated the impact of Cell Phone on driver’s situation awareness and brake reaction time. Materials and Methods: For performing this study, 31 bus drivers drove in the bus driving simulator. Drivers’ situational awareness was measured by situation awareness global assessment technique. Gold Directed Task Analysis method used to analysis of driver’s cognitive tasks. The simulator was automatically recorded braking reaction time of the subjects. Results: Results showed that all levels of drivers’ situation awareness significantly reduced after talking on the cellphone (p M3 ER -