**The 9th International Probabilistic Safety Assessment and Management [#ie6a8ec9] (2008.05.18-23 @Kowloon Shangri-La Hotel, Hong Kong, China) -Yukio Horiguchi, Takanori Suzuki, Hiroaki Nakanishi and Tetsuo Sawaragi: A Study on Communication Modality to Support Mode Awareness: Examining Driver’s Awareness of Mode of Driving Support System, Proc. of the 9th International Probabilistic Safety Assessment and Management, CD-ROM, 2008.