What action must not be taken by a member of a small group in an area with track gang signals?

In a scenario where track gang signals are in use, the correct action that must not be taken is giving the proceed signal. This is because the authority to give such a signal is typically restricted to designated personnel, ensuring that only those trained and responsible can communicate safe conditions on the track. Allowing any member of a small group to give the proceed signal could lead to confusion and potentially dangerous situations, as it could mislead train operators regarding the safety of the track ahead.

When track gang signals are being employed, they establish a clear communication protocol intended to maintain safety. The individuals who are permitted to issue these signals possess a specific understanding of the current situation regarding track maintenance and train movements.

In contrast, actions like keeping a lookout for approaching trains and making noise to alert a train are generally encouraged to maintain safety awareness on the job. Non-verbal signals might also be acceptable among workers to communicate effectively without compromising safety; however, the responsibility of officially signaling trains should always fall to those specifically authorized to do so.