The active lane keeping assist monitors the lines on the pavement in front of you and sends a vibrationthrough the steering wheel if you start to drift out of your lane.
There are a series of variations, and in the last one Beethoven takes the theme from a quarter note pulsation through every diminution until it becomes mere vibration.
For example, spreading the same number of journeys over a greater period of time through trading across may well bring the benefits of easing congestion at peak times, but roadside residents will not be grateful when traffic noise and vibration start earlier in the morning and continue through the night.