Our hotel is very convenient for the huge Knoxville Convention Centre, a purpose-built affair with a capacity of perhaps 4000 people, and my room is on the 10th floor. The lifts are nice and quick however. Well, there is a freeway running in front of the hotel and the serious traffic starts up at about 6 a.m.. I have noticed an interesting "courtesy" behaviour from lorry-drivers. As police cars head down the freeway with their sirens at full-blast, lorries in the vicinity start honking their horns. In sympathy ? Well, I now realise that this is a road safety issue to warn traffic downstream (appropriate word !) of the oncoming police car and to take appropriate evasive action. I suppose you eventually get to filter this out during the night.
