Show I r PLAN N TO CONTROL TRAFFIC I t Ems Ems- t i ij S j I ij I IJ J I itt Ii IiI I l li 1 I Y Diagrams shoW two methods of traffic c control by Er Er- Er Ernest nest P 1 Goodrich New York traffic engineer Upper diagram o method of continuous movement on way one streets with Ith alternate directions on cross streets Lower diagram shows the platoon ISS IS'S tern ten controlled by traffic signals on each corner alternating to per per- permit permit mit north and south traffic to pass one corner while cast and west traffic crosses the next t |