Never? Never speeding also means not always keeping up with traffic which might be flowing at a higher rate of speed. Consequently you are chancing a greater risk of an accident by not keeping up with traffic and not speeding.
> “We all speed, yet months and months usually pass between us seeing a crash,”
This is a stupid argument. Do you really want to be in a crash every few months? Roughly the average person has a 1% lifetime chance of dying and a 10% chance of serious injury in a car crash. To me these are pretty high numbers.
> that sign won’t make people drive any slower
Where I live, speed limits are zealously enforced - loss of licence for a third offence in two years - and people do comply with them. So yes a sign won't do it but you can get people to comply.
As usual the US seems to find the worst solution: overly restrictive speed limits (55mph) combined with lack of enforcement. This causes large divergences in speeds, which is apparently dangerous.
The article seems to confuse the merits of driving slower than most traffic, with the merits of slowing traffic as a whole down. They are very different things. If most people on the autobahn are doing 110mph then one driver doing 55mph would be dangerous. However slowing everyone down to say 60 mph may be a much safer overall situation.
The drivers who obey the law do not bear responsibility for the increase in risk, but neither they raised their own safety.
I live in Durban, South Africa. Lots of people speed here and sometimes the fast lane will be moving faster than the limit. But I don't think I've ever been in a situation where all of the traffic is moving faster than the limit.
Is it common for all lanes to be moving faster than the speed limit where you are?