To minimize a time interval from an obstacle detection to pressing of a brake pedal.

A pivot is provided on a bent portion on a brake pedal formed by bending the pedal part. An accelerator pedal is axially supported on the pivot so as to be integrated with the brake pedal. By pushing the accelerator with the toe, the accelerator pedal is turned. By pushing the brake with the heel, the speed is immediately reduced so as to stop the vehicle without taking the foot off the pedal.