The best public art mimics nature, as Pierre Vivant’s Traffic Light Tree does. This giant sculpture of fully-functioning traffic lights is in London adjacent to a roundabout near Canary Wharf.
Pierre Vivant’s Traffic Light Tree was created by the Public Art Commissions Agency. I imagine this would confuse tourists considerably; traffic circles are confusing enough, even for veteran drivers. The light cycles of the Traffic Light Tree are meant to mimic the constant action at Canary Wharf.
"The Sculpture imitates the natural landscape of the adjacent London Plane Trees, while the changing pattern of the lights reveals and reflects the neverending rhythm of the surrounding domestic, financial and commercial activities." Pierre Vivant 1998 
