I agree with you that miles travelled is a better metric.
But traffic density would be another interesting metric. Temporary speed limits on the autobahn are typically dynamically adjusted to the traffic situation.
But traffic density would be another interesting metric. Temporary speed limits on the autobahn are typically dynamically adjusted to the traffic situation.
Eventually, I see so many other factors that could enter the picture that I’m wondering if that comparison makes any sense at all (apart from proving the writer is trying to force his point?).