ASPS CBTC stands for which block?

• A. Automatic Train Supervision
• B. Always Reporting Block
• C. Alarm Indication Relay
• D. Approach Lock Repeater Stick

Answer: (B)

Understanding CBTC block naming helps you see why this is the best match. ASPS in a CBTC context denotes a block whose role is to provide constant, real-time reporting of its status to the control system. That continuous reporting is essential for the CBTC superstructure to know exactly where trains are and what the block occupancy is, enabling safe braking, speed control, and proper movement authorities. So Always Reporting Block is the term that aligns with that function.

The other options refer to broader systems or devices rather than a specific CBTC block name: Automatic Train Supervision is the overall control layer, not a block; Alarm Indication Relay is a conventional signaling device for fault indication; and Approach Lock Repeater Stick isn’t a standard CBTC block term.