A study of the mid-block portion of five urban roads in Toronto found a statistically significant decrease in traffic accidents after landscape improvements to the center median and edge of the curb lane.
Naderi, Jody Rosenblatt. (2003). Landscape design in the clear zone: Effect of landscape variables on pedestrian health and driver safety. Transportation Research Record: Journal of the Transportation Research Board, 1851(1), 119-130.
