Journeyman
Established Member
- Joined
- 16 Apr 2014
- Messages
- 6,295
I was travelling on the subway for the first time since the travel ban lifted today and noticed that there are now the pictured devices placed on the track. I saw one in a tunnel but most I saw were on the stations. They appear to bunch up towards the exit tunnel, too.
Can anyone tell me what these are? I'm curious…
thank you
Can anyone tell me what these are? I'm curious…
thank you