Sand Glass: the concept of traffic lights with LED hourglass

In the Netherlands increasing traffic to see how long you should wait before they jump on green. Designer Thanva Tivawong find this an excellent idea, but will - rightly in my view - this attractive piece lights. For this reason, she comes with this clever concept: traffic lights that look like hourglasses. If the sand is orange you a big step on the accelerator to give. Here's a second image of the Sand Glass LED lights.

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