The automated driving control unit 7 is structured with a microcomputer that includes a CPU, a ROM, and a RAM. The CPU executes a program stored in the ROM for performing automated driving of an automobile. When a destination is input by a driver or another occupant before starting automated driving, the automated driving control unit 7 computes a travel route to the destination and proposes one or more candidates of the travel route. When an occupant confirms or selects one of the proposed travel routes, the automated driving control unit 7 controls the accelerating system 10, the steering system 11, the braking system 12, and the indicating system 13 in accordance with the travel route so that automated driving is started. Here, the automated driving control unit 7 performs switching between an automated driving mode and a manual driving mode in accordance with switching operation performed by an occupant.