PROBLEM TO BE SOLVED: To improve safety of a vehicle when the mode is switched from self-driving mode to manual-driving mode.SOLUTION: An external measurement unit 4 measures a state of the outside of a vehicle in self-driving mode. A biometric information acquisition unit 2 acquires biometric information of a driver of the vehicle in self-driving mode. A determination unit 21 determines the necessity of controlling the vehicle, on the basis of the state measured by the external measurement unit 4. When the determination unit 21 determines that it is necessary to control the vehicle, an arousal state measurement unit 22 digitizes an arousal state of the drive, on the basis of the biometric information acquired by the biometric information acquisition unit 2. A transition process determination unit 23 determines a process of transition from self-driving mode to manual-driving mode in which the vehicle is driven by the driver, on the basis of the arousal state digitized by the arousal state measurement unit 22.SELECTED DRAWING: Figure 2【課題】自動運転モードを手動運転モードに切り替える際の車両の安全性を向上させる。【解決手段】外部計測部４は、自動運転中の車両の外部の状況を計測する。生体情報取得部２は、自動運転中の車両の運転者の生体情報を取得する。判定部２１は、外部計測部４が計測した状況に基づいて、車両の制御の必要性を判定する。覚醒状態計測部２２は、判定部２１が車両の制御が必要と判定したときに、生体情報取得部２が取得した生体情報に基づいて、運転者の覚醒状態を数値化する。移行工程決定部２３は、車両を自動運転から運転者による手動運転に移行するまでの工程を、覚醒状態計測部２２が数値化した覚醒状態に基づいて決定する。【選択図】図２
