Where is the transverse cab located on the R68?

The transverse cab on the R68 subway car is located at the No. 1 end. This design allows the operator to control the train while facing toward the front, enhancing visibility and ensuring that the operator can safely navigate through stops and switches. The cab design is a critical aspect of train operations, as it directly impacts the safety and efficiency of train handling.

In contrast, other locations mentioned would not fulfill the operational requirements of a train cab. For instance, placing a cab at the No. 2 end or the No. 3 end would impede the forward-facing operation that is standard practice in subway trains, as it would alter the operator's line of sight. Furthermore, having a cab in the middle of the train would be impractical for directional travel and station stops. Hence, the No. 1 end is specifically designed to maximize safety and functionality for operating the R68.