What factor enhances communication between terminal security and staff?

The duress alarm systems play a crucial role in enhancing communication between terminal security and staff, particularly in emergency situations. These systems allow staff to quickly alert security personnel to potential threats or unsafe conditions with minimal delay. When activated, a duress alarm can initiate an immediate response from security, ensuring that any potential danger is addressed swiftly and effectively. The quick, direct communication facilitated by these systems is vital in maintaining safety and security within the terminal, as every second can count during a critical incident.

While other options might improve general communication or provide feedback, they lack the immediacy and specific focus on safety that a duress alarm system offers. For example, passenger feedback systems collect thoughts and opinions from travelers, but they do not provide real-time security communication. Similarly, social media announcements and in-terminal announcement systems may disseminate information broadly, but they aren't designed specifically to alert security personnel discreetly in urgent situations. Thus, the unique function and purpose of duress alarm systems set them apart as the most effective means of enhancing communication in contexts where security is paramount.