I was told that the cameras at LU stations have analysis software that can detect unusual actions\movements by pax, including the characteristic behaviours of peeps vacillating about throwing themselves in front of train. Maybe NR stations could use the same?
There is software that can detect suspicious, suicidal or dangerous behaviour from multiple camera feeds. I am sure if it was used correctly it could save lives, but I think other measures, such as completing the fencing off platforms on fast lines that are rarely used for stopping services (plus lockable gates, of course, for access, should the need arise), would have more of an effect in the short to medium term. Remember that a lot of software has to be developed gradually, with algorithms tested and developed in accordance with a slowly expanding set of potential scenarios, etc.
I am afraid I do not know the specifics of any software operating as part of the LU CCTV computer system. I hope it does not sound callous, but it could cause massive issues if the software were installed on all NR camera systems and there happened to be repeated instances of it picking up behaviour which wasn't actually in any way suicidal. I'm thinking about people like platform staff, and also trainspotters. Could their behaviour end up being incorrectly monitored, I wonder? We wouldn't want the WCML, ECML, GWML, BML, MML or whatever shut down for any length of time whilst a trainspotter was told to stop wandering around a platform. Instead, a high-priority alert to the relevant staff would probably best, in order to allow them to make a swift judgment.
Although there would probably be concerns about misuse, I would be very much in favour of "emergency stop" buttons being fitted on station platforms - much like you would see on many LU platforms.
My thoughts and condolences are extended to all those who have had to deal with these incidents, the friends and families of the victims, and all the witnesses. I hear there was also a fatal incident at Cheddington today. There are too many incidents like this.