Both 3816U and 9178 have the BRBP SP sticker but they are always
seen on 88. 485 should be relacing 3816. Before the B9 came in,
there are 28 buses for 88, so with 9178 being SP, just nice went
back to 28 buses.
Note: Even thought 9005, 9007 and 9178 are SP, they are seen on 88
regularly(or can i everyday)