verbal check; verbal confirmation
Railroad safety practice of calling out and confirming signals or conditions aloud. Also used more broadly for any verbal confirmation procedure.
The driver confirms the signal with a verbal check.
For safety, a verbal confirmation is performed before work.
pointing and calling
Compound of 喚 (call out) and 呼 (call). The exact origin as a railroad term is uncertain, but it likely developed from the practice of calling out signals.