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| Corridor | Route | Current bus services using the corridor |
| 1 | M32 into Bristol | X27 Yate to Bristol and X42 Chipping Sodbury to Bristol, X73 Bradley Stoke to Bristol |
| 2 | A4018 from Cribbs Causeway to Bristol via Henbury and Westbury | 1 Cribbs Causeway to Broomhill, 8 Temple meads, Clifton and Redland, 9 Temple Meads, Redland and Clifton, 54 Cribbs Causeway to Stockwood |
| 3 | A4 from Bath to Bristol via Keynsham | 339 Bath to Bristol via Keynsham, 349 Bristol to Keynsham, 904 Park and ride Brislington to Bristol, X39 Bath to Bristol |
| 4 | Cribbs Causeway to Bristol via Bradley Stoke, Abbey Wood and Horfield | 73/B Centre to Cribbs Causeway, X73 Bradley Stoke to Bristol |
| 5 | A432 from Yate/Chipping Sodbury to Bristol | X27 Yate to Bristol and 342/X42 Chipping Sodbury to Bristol, 327/329 Yate to Bristol |
| 6 | A37 from Midsomer Norton to Bristol | 376 Bristol to Street, 379 Bristol to Radstock |
| 7 | A4174 Ring Road from Emersons Green to Cribbs Causeway via UWE, Abbey Wood and Filton | 73/B Centre to Cribbs Causeway, X73 Bradley Stoke to Bristol. |
| 8 | A370 Weston-Super-Mare to Bristol | 351/352/353/X1 Weston to Bristol |
| 9 | A369 Portishead to Bristol | 357/358/359 Bristol to Portishead |
| 10 | A367 Bath to Radstock and Midsomer Norton | 41 Odd Down to Bath Park and ride, 173 Wells to Bath, 178 Bath to Bristol, 184 Bath to Frome |
Bus corridors to benefit from the scheme
The improvements are taking place along 10 corridors. These were identified as key bus service areas which are prone to congestion. All bus services using these corridors will benefit from these proposals, however the new buses will only be on designated First service routes. Below is a list of the main services benefiting from the corridors.
To view a map of the 10 corridors click here.