If I was a policeman…

I’ve been to quite a few cities in my life (let’s face it, I’m getting old enough to be “well travelled”) and it’s never occurred to me that the traffic might flow better if someone stood in the middle of the street and waved their arms around.  In almost every city, from Bergen to Bristol or from Shanghai to St David’s. it seems to me that drivers are perfectly capable of dealing with a junction without massive gesticulations for guidance – even when there are roadworks.  Not so in Rome, it would seem…