(14 Jun 2014, 1:55 pm)jaimz13 wrote it does i saw bus do 492 then it was on 66 but them 84 came off did H66 but the Volvo b7 is always on 45/18/19 but when their Mpd on it keeps changing

The B7RLE and SPDs are only able to do the 18/19, 45, 77 and 85/86 due to their length. While they could do the H66, as it is interlinked with the 492, they don't appear on there.

From my observations, their workings are as such:
84 is normally stand-alone with one bus all day
The SPDs and B7RLE normally do 18/19/45 in that order with a 15 minutes layover off 18s onto 19s, 15 minutes off 19s onto 45s and a 30 minutes layover off 45s onto 18s
A66/H66 work together with 492s, sort of A66 arrives xx32 light to Middlesbrough to work xx45 492 then hour later light back to Teesside Park to work xx02 H66, xx02 arrival on H66 then has 30 minutes layover before going out as xx32 A66
455/456 are normally stand alone on weekdays using 2 buses, not sure on Saturdays
The peak extra 45 bus comes off A66/H66/492 cycle, the PM vehicle additionally works the 1846 77 from Stockton