A Recent Development in Traffic Control
H. W. Vickery, V. W. Leonard · Transactions of the American Institute of Electrical Engineers · 1932
The large number of automobiles in use today has introduced new problems in the control of vehicular traffic. Timing devices with increased flexibility are required so that signals can be operated more nearly in accordance with varying conditions of traffic flow. A recently developed timing device, containing new features and having increased flexibility, offers a solution of the problems involved. The timer is described and its advantageous features are discussed.