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In this study 24 participants drove a simulator while listening to three types of messages in both synthesized speech and recorded human speech. The messages consisted of short navigation messages, medium length (approximately 100 words) email messages, and longer news stories (approximately 200 words). After each message the participant was presented with(More)
Design consistency refers to the conformance of a highway's geometry with driver expectancy. Drivers make fewer errors in the vicinity of geometric features that conform with their expectations. Techniques to evaluate the consistency of a design documented within this report include alignment indices, speed distribution measures, and driver workload.(More)
The goal of the course was to teach students how to design and evaluate computer systems for ease of use by conducting human performance experiments, using analytic models and methods, and examining the research literature. This was accomplished through lectures, discussions, videotapes, demonstrations, guest lecturers, homework assignments, and projects.(More)
A driving simulator experiment was conducted to determine the effects of entering addresses into a navigation system during driving. Participants drove on roads of varying visual demand while entering addresses. Three address entry methods were explored: word-based speech recognition, character-based speech recognition, and typing on a touch-screen(More)
Cardiac (heart rate, pre-ejection period, and respiratory sinus arrhythmia), performance, and visual demand measures of driver workload were obtained from 15 male university students who drove a simulated course multiple times at a fixed speed of 72.4 km/h. The course contained curves of 3 different radii (582, 291, and 194 m) and was driven with and(More)
This paper summarizes Society of Automotive Engineers (SAE) Recommended Practice J2944, Driving Performance Measures and Statistics (draft of February 12, 2013). This Practice was written because commonly used measures and statistics are (1) not named consistently (a lane departure is also called a lane exceedance, lane bust, line crossing, etc.), (2)(More)
Mantis shrimp strike with extreme impact forces that are deadly to prey. They also strike conspecifics during territorial contests, yet theoretical and empirical findings in aggressive behaviour research suggest competitors should resolve conflicts using signals before escalating to dangerous combat. We tested how Neogonodactylus bredini uses two ritualized(More)
Text is often viewed not perpendicularly to its display. With nine assumptions, this study developed a new equation for estimating the legibility of a single letter E viewed at different display angles. This equation examines viewing distance, text height, strokewidth, Snellen acuity, background luminance, luminance contrast, and incident angle. This(More)
The driver/rider experience is a major development in mobile user-interface (UI) design worldwide, similar in scale to the first introduction of personal computers to the desktop. Most automobile manufacturers seeking to develop smart cars have relatively little experience with advanced software-based UIs and information visualization (IV). This panel(More)