Well, based on the X45 serving Blackhall Mill, Chopwell and High Spen with the X47 withdrawn, this is how I would personally allocate the new and existing fleet as follows for the XLines double deck routes as well as the Angel 21 (Also including Tyne Valley Ten & Crusader for reference in terms of spare ratios etc)

Potential Service Change Samples

X31/X46 - Interworking
Consett (X46): 00:05
Newcastle (X46): 01:08
Newcastle (X31): 01:15
Stanley (X31): 01:53
Stanley (X31): 02:00
Newcastle (X31): 02:39
Newcastle (X46): 02:45
Consett (X46): 03:45

X45 - Standalone and running via Blackhall Mill, Chopwell and High Spen
Consett (X45): 00:05
Newcastle (X45): 01:23
Newcastle (X45): 01:30
Consett (X45): 02:45

X30/(X70/X71) - Interworking
Consett (X70): 00:52
Newcastle (X70): 01:53
Newcastle (X30): 02:00
Stanley (X30): 02:38
Stanley (X30): 02:45
Newcastle (X30): 03:24
Newcastle (X70): 03:30
Consett (X70): 04:27

X46/X70/X71 (Consett Town Centre to Newcastle every 15 minutes either via Metrocentre or Sunniside) - Not interworking but demonstrating common frequency
Consett Depart: 05 | 25 | 35 | 52
Newcastle Arrive: 08 | 23 | 38 | 53
Newcastle Depart: 00 | 15 | 30 | 45
Consett Arrive: 15 | 27 | 45 | 55

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Allocation Summary for Depots

Consett PVRs (Total PVR of 26x with 3x spare)
- X5/X15 - 4x Wright StreetDeck
- X30/(X70/X71) - 8x ADL E400MMC
- X31/X46 - 8x Wright StreetDeck
- X45 - 6x Wright StreetDeck

Hexham PVRs (Total PVR of 5x with 1x spare)
- X84/X85 - 5x Wright StreetDeck

Riverside PVRs - Including Hexham TVTs (Total PVR of 37x with 5x spare)
- 10/10A/10B - 16x Volvo B9TL
- 26/27 - 14x Volvo B9TL
- X9/X10 - 7x Volvo B11R

Washington PVRs (Total PVR of 14x with 1x spare)
- X1 - 14x Wright StreetDeck

Chester Le Street PVRs (Total PVR of 23x with 3x spare)
- 21 - 8x Wright StreetDeck & 7x Volvo B5TL
- X21 - 8x ADL E400MMC
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Depot Breakdowns

Consett
- Wright StreetDeck 6304-6307 - XLines X5/X15
- Wright StreetDeck 6323-6329 - XLines X31/X45/X46
- ADL E400MMC 6336 - XLines Spare
- ADL E400MMC 6337 - XLines Spare
- ADL E400MMC 6338-6345 - XLines X30/(X70/X71)
- ADL E400MMC 6346 - XLines Spare
- Wright StreetDeck 6370-6376 - XLines X31/X45/X46

Hexham
- Wright StreetDeck 6302 - XLines Spare
- Wright StreetDeck 6303 - XLines X84/X85
- Wright StreetDeck 6330-6333 - XLines X84/X85

Washington
- Wright StreetDeck 6301 - XLines Spare
- Wright StreetDeck 6356-6369 - XLines X1

Chester Le Street
- Volvo B5TL 6308-6314 - Angel 21
- Wright StreetDeck 6315-6322 - Angel 21
- Volvo B5TL 6334 - GoNE Spare
- Volvo B5TL 6335 - GoNE Spare
- ADL E400MMC 6347-6354 - XLines X21
- ADL E400MMC 6355 - XLines Spare

Riverside (Incl Hexham B9TLs)
- Volvo B9TL 6001-6007 - Crusader 26/27
- Volvo B9TL 6043-6044 - GoNE Spare
- Volvo B9TL 6045-6047 - Tyne Valley Ten
- Volvo B9TL 6048 - GoNE Spare
- Volvo B9TL 6049-6055 - Crusader 26/27
- Volvo B9TL 6071-6083 - Tyne Valley Ten
- Volvo B9TL 6099 (from PM) - GoNE Spare
- Wright StreetDeck 6377 - XLines Spare
- Volvo B11R - XLines X9/X10