Gateline must be left open if it is unmanned.
As stated four posts earlier. If you're going to resurrect a thread 6 months old, it would be good to post some new information.
Gateline at BTM▸ normally opens at XXXX. Gateline at Bristol Parkway normally opens at XXXX.
Ah, yes, that's new, and will be very helpful to any would be fare evaders using Bristol stations.
Edited to remove times of gate opening in the quoted section