Incidentally I found out about this map from Adventures of a Frogsbif - a bilingual blog documenting a French student's adventures in London while she studies at Goldsmiths in New Cross: 'London never sleeps. This city is never silent. I live next to a pub backyard, which means that I can hear people talking from noon to 1am, then there's the noise of people talking in my flat, or in the flat next door, or in the other blocks, or down on the green. There's also the constant roar of cars going by, rythmed by police cars and ambulances' alarms freaking me out every half hour. One would think the whole Lewisham population would be dead by now, considering how many people already called the cops these last days' (full post here).
See also her thoughts on British food, and lots of recipes with French alternatives!