TfL CCTV feeds access + usage

Actually the TfL CCTV system has been entirely IP since early 2012, with either IP cameras or feeds encoded at the base of the camera pole, and from there multicast video traffic distributes these feeds around London as needed by users. The low CIF resolution is downsampled from the native, and transcoded to browser-friendly H.264 if not already in that format. The low res is mainly to ensure there are no identifiable people that might cause GDPR problems, whilst the 264 is to ensure maximum browser compatibility. You are right though about the round-robin approach - all clips need to pass a set of automated checks to make sure they aren’t showing anything that shouldn’t be published, as well as branded, downsampled, and transcoded, and with blanking images inserted if the cameras are faulty - all of which is far easier to manage with discrete clips than live feeds. Clips can be archived as far as I can see from the T&Cs - an example of mine with 1 months archived footage is:

https://livetrains.co.uk/jamCams/osm/#00001.06501

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