In message
,
" writes

I need to travel on 1st train on Sunday Morning from Wembley Park to
Chesham Station. Do these stations have the new Bicycle Friendly
barriers, or do they have the old style barriers that have to be
opened by a member of staff?

If you are worried that there may not be staff to open barriers at that
time, my understanding is that barriers have to be left in a locked-open
state if there is no member of staff on duty to open them manually.
--
Paul Terry