Effects of Spatial Compatibility on In-Vehicle Auditory Warning Information Design

• Main Authors: Jing-wun Jhuang, 莊靖玟
• Other Authors: Yung-ching, Liu
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/06125081082155485480

碩士 === 雲林科技大學 === 工業工程與管理研究所碩士班 === 97 === Drivers can not predict and perceive the problems of vehicle and road environment changes all the time, and thus the in-vehicle warning information systems can provide useful information for safety improvement. Well-designed in-vehicle warning information systems become more important in complex traffic condition today. In a stimulus-response task, spatial compatibility can increase the driver’s response accuracy and decrease the response time. The purpose of this study is to evaluate the effects of in-vehicle auditory warning information adopting spatial compatibility design concept upon driver’s behaviors and performance. This study includes three stages. The first stage is to design and to develop the visual and auditory warning information systems based on previous literature review guidelines. The second stage, an experiment is conducted to compare the three visual warning information formats, i.e., text only vs. icon only vs. text and icon. In the third stage, based on the stage two evaluation results, the optimal visual warning information format is then brought to be compared to the auditory warning information with or without the design concept of spatial compatibility via a driving simulator experiment. In this way, the in-vehicle warning information interfaces in this stage will include visual display, auditory display with spatial compatibility, auditory display, visual and auditory display with spatial compatibility, visual and auditory display. This simulator experiment is to assess the impact of those five warning information displays upon driver’s behavior and response. 30 drivers following the within-subjects design participate in the second and third stage experiments and the dependent variables collected for this study include driving performances, response times, and driver’s subjective workload. Results showed that (1) comparative evaluation of three visual warning information formats, subjects’ performances using icon only and text and icon formats were better than those using text only format; (2) Hybrid in-vehicle auditory and visual warning information interface was more beneficial for task performances than single auditory (or visual) warning information interface; (3) spatial compatibility indeed was helpful to decrease response time and improve response accuracy, and this effect was more significant while combined with the visual display.