Number of co-authors:13
Number of publications with 3 favourite co-authors:Steven M. Kiger:2Thomas H. Rockwell:2Craig Simonds:1
Louis Tijerina's 3 most productive colleagues in number of publications:David Watson:4Thomas H. Rockwell:3Steven M. Kiger:2
Civilization advances by extending the number of important operations which we can perform without thinking of them.
-- Alfred North Whitehead
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Publications by Louis Tijerina (bibliography)
Kochhar, Dev S., Talamonti, Walter J. and Tijerina, Louis (2012): Driver Response to Unexpected Automatic Braking/Haptic Warning While Backing. In: Proceedings of the Human Factors and Ergonomics Society 2012 Annual Meeting 2012. pp. 2211-2215.
Two studies were conducted to examine driver behavior in response to an unexpected automatic braking/haptic event while backing. One study emulated a False Positive condition (no object present in reversing path at/after braking event onset). A second study involved a True Positive condition (obstacle present at/after braking event onset). Results of the False Positive study indicated that, at braking event onset, drivers either already had their foot on the brake, or quickly placed it there. Shortly thereafter many drivers began to exhibit exploratory behavior to test the state of their vehicle, e.g. release of brake pedal, squeezing the accelerator pedal, etc. Results of the True Positive study also indicated that drivers either already had their foot on the brake or quickly placed it there. However, a higher percentage of participants held the brake pressed. Their exploratory behavior to test the state of the vehicle involved brake pedal release only. No driver pushed the accelerator pedal when an obstacle was visible in the rear-camera display. Driver eye gaze and head movements were observed for both False Positive and True Positive scenarios. Results are presented and their implications are discussed.
© All rights reserved Kochhar et al. and/or Human Factors and Ergonomics Society
Curry, Reates, Blommer, Mike, Tijerina, Louis, Greenberg, Jeff, Kochhar, Dev, Simonds, Craig and Watson, David (2010): A Mental Model Perspective of a Driver Workload System. In: Proceedings of the Human Factors and Ergonomics Society 54th Annual Meeting 2010. pp. 2096-2100.
Conceptualizing driver mental models is not a common tool used to evaluate vehicle human-machine interfaces (HMIs) in the transportation-related literature. The presented research examines the results of a mental model exercise used to explore drivers' perception of a task mitigation workload manager. The driver workload system was designed to disable HMI functions when driving demand was estimated (by the system algorithm) to be high based on real-time assessment of the external driving environment. This paper focuses on abstracting driver comprehension of the workload system using mental model concepts.
© All rights reserved Curry et al. and/or HFES
Goodman, Michael J. and Tijerina, Louis (1995): Heavy Vehicle Driver Workload Assessment. In: Proceedings of the Human Factors and Ergonomics Society 39th Annual Meeting 1995. .
Kiger, Steven M., Rockwell, Thomas H. and Tijerina, Louis (1995): Developing Baseline Data on Heavy Vehicle Driver Visual Workload. In: Proceedings of the Human Factors and Ergonomics Society 39th Annual Meeting 1995. pp. 1112-1116.
This study focused on the development of baseline measures of driver visual allocation under normal operating conditions. Thirty licensed truck drivers drove an instrumented heavy truck over a 459 km fixed route in which road type and ambient lighting condition were varied. An on-board video recording system was used to record the subject's visual glances throughout the run. During the run subjects performed three driving tasks: open road driving, car following and in-cab tasks requested by the experimenter. Over all conditions, the mean time off the road was 1.01 s and the mean road scene glance duration was 2.18 s. The results indicated that road type and driving task were significant factors affecting driver visual workload indicators. Ambient light level was not a significant factor affecting the visual allocation of truck drivers.
© All rights reserved Kiger et al. and/or Human Factors Society
Tijerina, Louis, Kiger, Steven M., Rockwell, Thomas H. and Tornow, Carina (1995): Workload Assessment of In-Cab Text Message System and Cellular Phone Use by Heavy Vehicle Drivers on the Road. In: Proceedings of the Human Factors and Ergonomics Society 39th Annual Meeting 1995. pp. 1117-1121.
This study assessed the driver workload imposed by a text messaging system and cellular phone on heavy vehicle drivers under various driving conditions. Sixteen (16) professional commercial vehicle operation (CVO) licensed drivers drove an instrumented heavy truck over a 4-hour period on public roads under various conditions of ambient lighting (day or night), traffic density (light or heavy), and road type (divided or undivided). Within driving condition combinations, various levels of text message reading, cellular phone dialing, radio tuning, and communications dialogue were completed by the driver. Continuous measures were taken of visual allocation, steering and accelerator activity, speed maintenance and lane-keeping performance. Results of in-vehicle device use are presented and provide insights into useful workload measures and methods, as well as a contribution to the literature on cellular phone and in-vehicle text messaging system ergonomics.
© All rights reserved Tijerina et al. and/or Human Factors Society
Tijerina, Louis and Treaster, Delia (1990): Model Validation, Sensitivity Analysis, and Utilization with Micro SAINT: A Case Study. In: D., Woods, and E., Roth, (eds.) Proceedings of the Human Factors Society 34th Annual Meeting 1990, Santa Monica, USA. pp. 1122-1126.
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