The inventive self-propelled vehicle, in particular a road-building machine, comprises a traction drive, a steering device and a rotatable driver seat (5) in which a traction drive control unit (6) is arranged. Adjustment signals for the traction drive are generated according to the direction of the adjustment of the control elements of said control unit (6). Said road-building machine also comprises a device for detecting the rotation angle .mu. of the instant rotating position of the seat and for correcting the directional components of the adjustment signals of the control elements to a -.mu. angle in such a way that the direction of the adjustment thereof corresponds to the direction of the vehicle motion at each rotating position of the seat.