I remember now being asked at Brighton station recently whether or not I was photographing or filming. Maybe staff get more jumpy if they see enthusiasts with camcorders...?
I'm sure there are ways to film at stations without people noticing. I doubt people who really want to harm.us would do their servailance so openly.
I got off a train at Wimbledon yesterday and I was fascinated by the water running off the roof into the train. It was getting a free wash! So I started to photograph it but it was leaving so photographs not quite as good as I wanted. I started to go up the steps then turned around as I knew another train was due in sortly and I had time. So i took some photos without that train and then when the train came in. I then went to another platform and took some more. Then I continued my journey.
I once got told at Portsmouth and Southsea that I needed permission to take photos. I was in the train and photographing the station clock for the time, as my camera time was out. The member of staff had to board the train to tell me, thus delaying the trains departure.
Guard wasn't aware of such rules.
There is a notice on the bus I'm on which says Reporting anything unusual won't hurt you. Are train photographer enuthists unusual and if I see one at a major railway station, should I report them to staff just incase? I seriously doubt it.