What types of switches are Hillside yard equipped with?

• A. Manual switches
• B. Remote-controlled switches
• C. Pneumatic switches
• D. Automatic safety switches

Answer: (D)

Automatic control and safety in track switching is the focus here. Automatic safety switches are designed to operate without manual intervention, guided by interlocking and signaling so a track is set to a safe route before a train proceeds. In Hillside yard, this means the switches adjust automatically, with built-in fail-safes that prevent conflicting routes and reduce the chance of human error. The system can automatically move to a safe position if power is interrupted or a fault is detected, keeping operations efficient and safer overall. Other options describe different ways to operate or move the switches, but they don’t inherently include the automatic, fail-safe interlocking that automatic safety switches provide.