What feature is typical of a CBTC yard?

The typical feature of a Communication-Based Train Control (CBTC) yard is the installation of transponders. In a CBTC system, transponders are critical components that facilitate real-time communication between trains and ground systems. They relay information regarding train location, speed, and system safety to ensure precise and efficient train operations.

Transponders enable enhanced position tracking and improve overall system reliability and safety by providing continuous updates on train movements and conditions within the yard. This level of connectivity allows for automatic train operation and contributes to the efficient management of train movements without the need for manual intervention.

Other choices present attributes that are not characteristic of a CBTC yard. For instance, operating without digital controls and must operate in manual mode contradicts the fundamental principles of CBTC technology, which relies heavily on digital systems and automation. Similarly, limited signals do not reflect the comprehensive communication capabilities of a CBTC system, which is designed to manage a dynamic and efficient flow of information to maintain safety and efficiency in train operations.