rowan_nichol wrote:
Up and Down occur on the railway. The Up line is the track towards the major city, usually London, Edinburgh in Scotland, also Derby on the old Midland railway routes, and Down being the line in the opposite direction.
"Up" means toward the hub of the city.
But that doesn't translate to right and left.
In the American south it might conceivably be a holdover from the paddle wheel river boat days on the Tennesee and Mississippi rivers. "With the current" is "down" stream, and against the current is upstream. So to a 20th Century pedestrian trying to cross a road right would downstream with the traffic (americans drive on the right), and left would be upstream with the traffic . That's the only explanation I can dream up for that lingo.