thecarchik (1520545) writes "New projects from German automakers Audi and BMW promise to ease congestion simply by looking at traffic signals and driving style, in an effort to smooth the flow of traffic. Through a test course in Munich, vehicles were able to post phenomenal fuel-efficiency gains simply by adjusting the timing of traffic lights depending on traffic volume—to whatever speed provides a so-called 'green wave' of four or more synchronized signals." Link to Original Source
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