The Scots think that the application of such devices would be great, and that they could set LED transmitter along roads and paths where they would communicate about road conditions, speed limits and other information with vehicles and laptops, cell phones and other electronic devices with passengers in them.

The disadvantages of the technology are, of course, the need for direct-sight between LEDs that broadcast data and sensors that receive them, which means that bad weather (fog, rain, snow, etc.), you can expect frequent interference due to these conditions. Systems setup in doors you can avoid many of these.

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