Where are the Route Selector push buttons located?

Where are the Route Selector push buttons located?

• A. In a box adjacent to a signal
• B. On the driver's seat
• C. Under the train
• D. In the dispatch center

Answer: (A)

Route selection is performed locally at the signal interlocking, using a small control box mounted right next to the signal. The Route Selector push buttons are inside that box so the operator can set the intended route for the upcoming turnout before the train moves. This close, visible placement lets the interlocking verify the route and lock the switches and signals accordingly, keeping movements coordinated and safe. The other locations—on the driver’s seat, under the train, or in the dispatch center—would separate the route-setting from the interlocking and reduce visibility and control, which is why they’re not used.

Route selection is performed locally at the signal interlocking, using a small control box mounted right next to the signal. The Route Selector push buttons are inside that box so the operator can set the intended route for the upcoming turnout before the train moves. This close, visible placement lets the interlocking verify the route and lock the switches and signals accordingly, keeping movements coordinated and safe. The other locations—on the driver’s seat, under the train, or in the dispatch center—would separate the route-setting from the interlocking and reduce visibility and control, which is why they’re not used.