What is the signal series in Tunnel E?

The signal series in Tunnel E is designated as 200 even. This designation is part of the signaling system used to regulate train movements within specific sections of the transit system. Each signal series corresponds to a unique set of operational signals that inform train engineers about track conditions, speed limits, and upcoming stops or switches.

In this case, the 200 even series indicates a specific range of signals that are utilized for trains operating within Tunnel E, which is crucial for maintaining safe and efficient transit operations in that area. Knowing the correct signal series helps engineers understand how to respond to signals appropriately, ensuring compliance with safety protocols and enhancing the overall flow of train traffic.

Understanding the context of different signal series is essential because each series might hold specific meanings and implications for train operation. The other series mentioned (100 even, 300 even, and 400 even) represent different sections or functionalities within the transit system, thus not applicable to Tunnel E.