| Show Automatic Traffic Signals in Effect An automatic electric control switch that will sound a bell and change traffic semaphore lights at I regular Intervals In the congested district was placed in service Thursday Thursday Thursday Thurs Thurs- day evening under the direction of ot C. C J. J Reading superintendent of ot the fire and police alarm systems of ot the department of ot public safety The switch will make available one more traffic of officer ticer whose time heretofore has been devoted to operation operation operation oper oper- of the lights and bells This officer will take tale his place with the others at Intersections and between blocks to direct traffic and clear up I congestion The switch will operate the red and green lights at thirty thirty- second intervals sounding a bell five tive seconds before each change of ot signal |