color changing lights highlight the underside of the central span of the Kingston Bridge & reflect in the water. the light sequencing is linked to real-time traffic patterns on the bridge & the tide levels. sensors tracking traffic congestion activate swathes of light on the bridge: yellow indicates a smooth flow, while red indicates a traffic jam. at the same time, green & blue hues are synchronized with the tide cycles of the Clyde River below. both systems run concurrently, with the colors reflecting in the water offering a double-sided wash of colored light

see also traffic colored bridge & inside out & alien landing strip & litmus.

[link: clydewaterfront.com & lightprojectsltd.com & peoplesdesignaward.org|thnkx Regine]