Temporary measures until Sv 143 officially handed over. They
(BRBP) handed the BR 143 buses over, but the control for those
slots on Sv 143 are still under BRBP for now. That's why you've
gaps to fill.
The 5 SDs x-ferred from BNDEP are temporary measures to plug the
gaps. So if they can miraculously dig out other SPs to sub the gaps
on Sv 143 each day, then those x-ferred SDs are free to roam
around. (which is why you see 1166L on 145, 5082G on 26 etc)
But the main purpose of those 5 ex-BN ones sent to BRBP, is to plug
the gaps for BR 143 for now.
Yeah.. i know..that why they are not really into perm BRBP 143..
more of SP buses, where BR143 can just take any available SP buses
instead... actually, there should be enough buses in BRBP to cover
the 5 duties of BR143 for this week as well (it is school holiday
and there are more SP buses around). not sure why BRBP need to take
bus from BNDEP.