We devide the drivers into 2 groups (5 drivers in manual group, 5 drivers in automatic group). In this paper, we study the manual and automatic driver’s shoulder muscle fatigue with method of frequency domain analysis through testing the driver, obtaining MF of trapezius muscle in static measurement and the surface electronical signal of the trapezius muscle after 110 minutes’ driving. In order to explore the pilot fatigue characteristics in grassland under different operation conversion highway, put forward the fatigue improve measures and improving the quality of driving, I use the real driving test. And vehicle operating system leads to different degree of muscle fatigue. On the grassland highway, the driver is prone to muscle fatigue because of the particularity of its landscape and the linear structure.
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