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This website traffic-signal-design.com states the following, "How are traffic signals designed? What is the difference between a phase and a stage? How do traffic signals know that I am waiting? This website has been set up to answer not only the questions above but also many more." We analyzed that the website also said " This website is aimed at developers, other traffic signal and engineering colleagues, or indeed anyone who is keen to gain a further understanding into the operation of traffic signals and the traffic signal design process." The header had Traffic Signal Design as the highest ranking search term. It was followed by How Do Traffic Signals Work, Traffic Signal Installation, and Traffic Signal Design Services which isn't as ranked as highly as Traffic Signal Design. The next words they used was Intergreen. Sanderson Associates was also included but might not be seen by search crawlers.