Without an overhaul, traffic planners estimated that the extreme traffic congestion  on El Toro Road in Lake Forest, Calif., would generate an estimated 17 tons  of air pollution. Photos: NUVIS Landscape Architecture and Planning
Without an overhaul, traffic planners estimated that the extreme traffic congestion on El Toro Road in Lake Forest, Calif., would generate an estimated 17 tons of air pollution. Photos: NUVIS Landscape Architecture and Planning