Despite this failure, Transport for London (TfL) has given permission for the technology to be expanded across London Underground stations too.

That’s the bit that gets me.

It failed miserably and yet they still think doubling down will make it successful. Stop believing the hype!!

Cut your losses on the 320K, consider it an unsuccessful trial and move on.

Also, 100 hours is like 2 offices working for a week, so it really isn’t terrible in terms of man hours.