What should you do if you walk by a door and the alarm is ringing?

When you encounter a ringing alarm by a door, it indicates a potential security issue that needs immediate attention. Calling Massport Operations or the Key Base Department is the appropriate action because they are responsible for responding to such alarms. This ensures that trained personnel can assess the situation quickly and take necessary action to maintain security and safety in the area.

Ignoring the alarm or choosing to continue walking poses a risk, as it could signify a serious problem that needs addressing. Waiting for someone else to investigate can lead to delays in response, which could compromise safety. Simply checking the door for visible issues may not provide a complete understanding of the situation, as many security concerns may not be immediately visible. Promptly reporting the alarm helps ensure the safety and security protocols are followed properly.