Lightening tactitle paving for pedestrian safety

Tactile paving is a system of textured ground surface indicators. It aims to assist pedestrians who are blind or visually impaired (see Wikipedia) and is also called truncated domes, detectable warnings, Tactile Ground Surface Indicators, or detectable warning surface. In Seoul, Korea, some of the tactile pavings light up at night. Interestingly, its color turns…

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Learning from errors

Stellan Ohlsson, Professor in Psychology at University of Illinois at Chicago visited COGENG (Cognitive Engineering Lab) at SKKU and gave a speech on skill acquisition. He introduced his own work of learning from errors in which he argues that, in order to acquire or specializes in a certain skill (e.g., changing a lane to the left while…

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Preference reversal of environmental friendly product

“Preference Reversal of Environmental Friendly Product,” Presented at the HSBC Business School, Peking University, ShenZhen: China, October 30, 2013. Do consumers like the environmental friendly products they buy? My colleague, Bohee, and I borrow the literature from the Behavioral Decision Theory and argue this is not always the case; consumers often choose the green product…

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