What is going on???????

Tram horn sounding constantly

Dunno - you can hear them up on Commonside.

perhaps a vehicle was blocking the track

hope it was nothing serious

It was a fault with the tram, got on that "noisy" tram at Cathedral. It was taken out of service at the train station and we all had to board a replacement one. Mystery solved

I wondered what that was. I could hear it up in Walkley. I had assumed it was a siren from one of the factories on the Don.