I have been informed that a hook turn is unique to Melbourne. It has been designed to manage right hand turns across tram tracks. Cars line up in a turn-only lane on the far left and wait for the signal, timed to ensure trams are clear.
Thanks to our local friends for the insights.
Meanwhile, we are getting used to coins.
Large silver coins are in cents up to 50 cents. Small gold coins represent dollars in one and two dollar values.
At first I kept thinking the small gold ones were worth less than the large silver ones. After all, American pennies are smaller than half dollars or silver dollars.
Small matters in a big country.