The experience at one of London’s busiest train stations appears to reflect what some of you have been telling us in the comments.
Some of you forgot it was happening, others said it wasn’t particularly loud and a few didn’t seem fussed at all.
At London Liverpool Street, Jasmine Patel said she was taken by surprise before her daughter told her what was happening.
The 53-year-old said: “It did take me by surprise, but then because Meera was with me she explained.”
Her 19-year-old daughter said it “wasn’t loud”, but “you could understand that many people were getting it at the same time”.
‘It came through twice for me’
On the Tube, one couple said they received the test alert while in a carriage.
Mark, 44, of Essex, said: “It came through twice for me. The whole Tube carriage’s phones started going when we got signal.”
His partner Abby said no one appeared surprised, adding: “Children slept through it and everything.”