The absence of a significant exit from the car 418 for a certain time also leads to the fact that several or all contacts come to a detached state.
Initially, it was believed that a dynamic device for visual observation would be required, showing not only the condition of each traffic light, but also the conditions of movement at least on the main streets. Unfortunately, this turned out to be unrealistic due to large dimensions and the cost of such a device. Therefore, a simpler device was made using an airmade of the city size of 16×8 foot (4877×2438 mm), on which the main routes, high -speed road roads, etc. D. highlighted in different colors, and the position of each adjustable intersection is indicated by a small neon lamp. These lamps are powered through the output distributor relay. The lamps light up when the intersection is controlled by a computer, and go out if its traffic lights are not controlled by a computing machine.
The visual observation device is installed in a prominent place and attracts great attention to the population. Despite his limited capabilities, it turned out to be very useful for the operator on duty, as it allows him to determine at first glance whether all the traffic lights connected to central control or turned off when it is turned on or stopped. The visual device also serves to remind the operator about special conditions, for example, when one or more traffic lights are disconnected from a centralized system due to road construction and t. p., what can matter when it is required to make a change in the scheme manually.
