Patent attributes
An automatic driving system includes: an information acquiring device configured to acquire driving environment information indicating a driving environment of the vehicle; a running control device configured to execute lane change control from a first lane to a second lane during automatic driving of the vehicle based on the driving environment information; and a display device configured to display an upper limit value of a running speed of the vehicle which is set by a driver of the vehicle during automatic driving. The display device is configured to display a deviation value which is calculated based on a target value of the running speed and the upper limit value along with the upper limit value during a speed-deviation running in which the running speed is higher than the upper limit value.