Traffic
There seems to be an assumption that traffic levels are higher than they "used to be". Yesterday I had cause to drive a road I had not driven for 25 years or so, it was a road the wife use to drive as a rat run, on her way home from work, to avoid the congestion on the main route out of the city. No one seems to use this route any more, which must mean either the traffic on the main route is better managed, or, people are now more patient and prepared to wait, or, there is actually less traffic, what would you put it down to?.