| Table 1: Average vehicle delay (minutes per 10 miles) on the slowest 10 per cent. of journeys on the PSA route incorporating the Dartford Crossing | ||||
| Road number | Route start point | Route end point | Average vehicle delay year ending March 2008 | Average vehicle delay year ending October 2009 |
| M25/A282 | J30 Dartford | J7 Redhill | 9.46 | 7.30 |
| M25/A282 | J7 Redhill | J30 Dartford | 11.35 | 8.42 |
| Table 2: Average vehicle delay (minutes per 10 miles) on the slowest 10 per cent. of journeys on the PSA routes approaching the Dartford Crossing | ||||
| Road number | Route start point | Route end point | Average vehicle delay year ending March 2008 | Average vehicle delay year ending October 2009 |
| A13/A1089 | A1089 Tilbury | A13 Aveley | 4.86 | 4.40 |
| A2 | London | M2 (J1) | 8.42 | 3.60 |
| A2 | M2 (J1) | London | 6.49 | 3.22 |
| M25 | J23 Barnet | J30 Dartford | 10.63 | 9.11 |