Method of generating bidirectional green waves of traffic by alternating lights in zones

A method of generating bidirectional green waves of traffic by alternating lights in zones, comprising:

• dividing a roadway comprising traffic in two directions into an even number of zones, wherein each zone of said even number of zones has substantially a same length;
• partitioning said even number of zones into two groups, each group of said two groups comprising half of the even number of zones, wherein zones in a first group of said two groups alternate with zones of a second group of said two groups along said roadway;
• selecting a speed limit for said traffic in said two directions of said roadway;
• selecting a traffic light duration substantially equal to a length of said each zone divided by said speed limit;
• controlling traffic lights in said roadway by repeatedly
• setting all traffic lights within said zones in said first group to allow said traffic to proceed in both directions of said roadway, and setting all traffic lights within zones in said second group to stop said traffic in said both directions of said roadway, for a period of time equal to said traffic light duration;
• and,
• after said period of time equal to said traffic light duration,
• setting said all traffic lights within said zones in said first group to stop said traffic in said both directions of said roadway, and setting said all traffic lights within said zones in said second group to allow said traffic to proceed in said both directions of said roadway, for said period of time equal to said traffic light duration.