Warning Tones and What They Mean

Test Tone: This is the Westminster Chime that is used everyday at noon to test the warning system. (.wav file: 320KB)

Emergency Tone: This is the siren tone of a real emergency. If this is sounded, you must tune in to a radio or TV station for further instructions. The emergency siren may be followed by an oral message, such as "Train derailment...possible hazards...stay inside until all-clear broadcast." (.wav file: 3.85MB)

All Clear Tone: This is the all-clear tone signifying the emergency is over. (.wav file: 7.40MB)