Tehran University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share By
Assessment of Secondary Task Effect on Bus Drivers' Mental Workload Using the Dali Index



Yosefi FS1 ; Abbaszadeh M2 ; Charati JY3 ; Etemadinejad S1
Authors

Source: Iran Occupational Health Published:2018

Abstract

Background and aims: Car accident reports shows that the main cause of accidents is driver error and unsafe behavior. Workload of the major factors affecting driver has a direct impact on the incidence of traffic accidents. This study aimed to evaluate aspects of mental work load of auditory-verbal secondary task was performed while driving. Methods: Twenty professional bus driver randomly selected and participated in this study. The bus driving simulator and the burden of driver activities (DALI) was used. Experiment was created from two blocks: The first block drivers are only driving activity carried out and the second block in addition to the driver, auditory-verbal secondary task also responded to. To compare the results of two blocks, independent t-test and to investigate the relationship between a brake reaction time and mental load analysis, Pearson correlation coefficient was used. Results: The results showed that secondary task all aspects of mental workload increases significantly. A brake reaction time and the number of collisions dramatically increased in terms of the secondary task. The relationship between mental workload and increase reaction time was seen braking and collision numbers. Conclusion: The results of this study suggest that secondary task during driving can cause to increase the brake reaction time and risk of accidents by increasing the drivers' mental workload of drivers and interfering with driving activity. These results indicate that driving experience does not reduce the effect of secondary activity during driving. © 2018 Tehran University of Medical Sciences and Health Services. All rights reserved.
Other Related Docs
4. Traffic Climate, Driver Behaviour and Dangerous Driving Among Taxi Drivers, International Journal of Occupational Safety and Ergonomics (2022)
5. Association of Hearing Health With Traffic Accidents Among Heavy Vehicle Drivers, International Journal of Environmental Health Engineering (2023)
16. Autonomic Nervous System Responses to Whole-Body Vibration and Mental Workload: A Pilot Study, International Journal of Occupational and Environmental Medicine (2019)