字幕表 動画を再生する 英語字幕をプリント Inattention is a growing concern amongst drivers. Volvo Trucks Driver Alert Support is an extension of the Lane Keeping Support system. In addition to lane position, the system continuously monitors the drivers steering behavior, in order to assess the Drivers attention and alertness level. The current status of the alertness is shown in a bar graph in the driver display. If the driver shows signs of inattention, fatigue or low alertness, the driver is notified by an acoustic signal as well as by an indication on the instrument panel. It´s time for a break.