> This streamlines the flow of traffic. Are you sure? It was revealed in 2009 that traffic light systems had been used to maximize fuel duty in the UK. http:/

> This streamlines the flow of traffic. Are you sure? It was revealed in 2009 that traffic light systems had been used to maximize fuel duty in the UK. http://news.bbc.co.uk/1/hi/uk/7998182.stm http://news.bbc.co.uk/1/hi/uk/7998182.stm "Previously the Department for Transport (DfT) had discouraged the systems which reduce fuel use, resulting in less tax being paid to the Treasury."