1. People shouldn't piss there. If it wasn't so concealed, fewer people would.1. It smells like piss because people piss there.
2. The trees are ca 40 years old and are, apparently, 'remarkably healthy' - it would be crazy to cut them down and start again.
2. I wouldn't cut them all down. Maybe 25%.
From north or south, you leave a bright, vibrant neighbourhood and enter a dark and depressing twilight zone. Bring in more light, natural and otherwise, and a lot of the lane's issues will improve right there, including the piss.