Traffic Lights on Auto Signal Right or Left Turning (Jan, 1933)
Traffic Lights on Auto Signal Right or Left Turning
Will miniature traffic lights for each car banish hand signals, and make driving safer in crowded city streets? Police officials of Oxford, England, recently saw such a system demonstrated by Sir William Morris, motor car maker. Installed in pairs one on each side of a car, and operated from a dashboard switch, the new lights use stop and go signals familiar to every motorist to warn of turns and other maneuvers. To signal a left turn, the lights first show yellow on both sides—a caution signal. Then they change automatically to red at left and green at right. The reverse of these signals is used in turning right or in pulling over to the right-hand curb to park. An all-green signal, straight on, indicates the driver will not turn at an important intersection. Signals are visible from front and rear, the front of the red light being shaded to amber because motor law’s forbid a red light facing ahead. An automatic timer in the control switch makes each signal flash several times and then puts the light out without any further attention from the driver.