A lot of our recent divided roads, especially the freeways, are clearly built to be safe at speeds noticeably higher than the posted limits. The police forces and the politicians are like a broken record in insisting on lower speed limits rather than tackling the much more difficult problem of idiot drivers.

Contrast with the roads through the national park near where I live that were built a hundred years ago. The southern part is twisty and narrow and I can't believe it used to be posted as 80km/h. It's been 60km/h for years.

Wade.