Rededication to honor Cleveland inventor of first three-signal traffic light

Scientists came up with an intersection model that would eliminate traffic lights

For the geometric and traffic characteristics shown in the figure and table below, develop a signal phasing plan showing the number of timing stages with permitted and protected movements in each stage. Note that you must determine whether to provide protected or permitted left-turn phasing, as well as determine an appropriate number of timing stages.Highway Capacity Manual guidelines for protected left turn phasing (product of left turn and opposing through and right movements):One opposing lan

Rules of the road: What to do if a traffic light goes out