1. Futian Ren et al. Psychology in transportation engineering ( Beijing University of Technology Publishing House, Beijing, 1993). In Chinese.
2. Li Li, Jingwu Zhu, Yinxiang Cao et al. The effect about different active state of parasympathetic nerve and sympathetic nervous system on HRV. Acta Physiologica Sinica. Vol. 50(5) (1988), pp.519-524. In Chinese.
3. Xiaohong Hao. Research the alignment of grassland road Based on Driver's Physiological and Psychological Reflection. ( Inner Mongolia Agricultural University Master Dissertation, 2010). In Chinese.
4. Task Force. Heart rate variability standards of measurement, Physiological interpretation, and clinical use. Circulation. Vol. 93(5) (1996), p.1043~1064.
5. Ke Zheng, Lisheng Jiang, Jian Rong. Study on Mental and Physiological Effects of Horizontal Radius of Expressway on Driving Reaction. Journal of highway and transportation research and development. Vol. 5 (21) (2003), pp.5-7. In Chinese.