Road collisions in St Albans
Police recorded 1,269 road collisions involving injury in St Albans between 2021 and 2025, about 254 a year. 14 of them were fatal, and an estimated 240 involved serious injury once DfT's severity adjustment is applied. These are reported injury collisions only: damage-only incidents and unreported injuries are not included.
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When collisions happen
The busiest hour was 4pm to 5pm, and 32% of collisions happened between 3pm and 7pm (close to the 32% across Great Britain). Friday had the most collisions, and 26% happened at weekends.
Trend over time
Reported collisions went from 268 in 2021 to 230 in 2025, a fall of 14%. Counts are affected by traffic levels, population and changes in how police record injuries, so St Albans should not be ranked against other areas on these numbers alone.
Who is affected
Across St Albans, 1,798 people were injured or killed in these collisions. Pedestrians were 7% of casualties (14% across Great Britain), pedal cyclists 8% (12%) and motorcyclists 10% (12%). Car and taxi occupants made up 68%. 1 of the pedestrians was killed.
Children aged 0 to 15 were 6% of casualties, lower than the 9% national share. People aged 16 to 25 were 19% (21% nationally), and people over 65 were 7% (10% nationally).
| Road user | Casualties | Share in St Albans | Share across GB |
|---|---|---|---|
| Pedestrians | 129 | 7.2% | 14.5% |
| Pedal cyclists | 151 | 8.4% | 11.9% |
| Motorcyclists | 177 | 9.8% | 12.4% |
| Car and taxi occupants | 1,225 | 68.1% | 54.4% |
| Bus and minibus occupants | 30 | 1.7% | 1.8% |
| Van and goods vehicle occupants | 77 | 4.3% | 3.5% |
| Other road users | 9 | 0.5% | 1.6% |
Casualties by age
| Age | Casualties | Share in St Albans | Share across GB |
|---|---|---|---|
| 0 to 5 | 24 | 1.4% | 1.6% |
| 6 to 10 | 34 | 1.9% | 2.6% |
| 11 to 15 | 55 | 3.1% | 4.8% |
| 16 to 20 | 151 | 8.6% | 10.6% |
| 21 to 25 | 182 | 10.4% | 11.0% |
| 26 to 35 | 397 | 22.7% | 20.8% |
| 36 to 45 | 333 | 19.0% | 15.8% |
| 46 to 55 | 271 | 15.5% | 12.8% |
| 56 to 65 | 176 | 10.1% | 10.1% |
| 66 to 75 | 66 | 3.8% | 5.3% |
| Over 75 | 62 | 3.5% | 4.5% |
Vehicles involved
9.6% of collisions involved a pedestrian casualty (17.7% nationally), 11.8% a cyclist (15.0%) and 13.9% a motorcyclist (15.3%). 9.7% involved a goods vehicle (3.9% nationally) and 21.6% involved a driver aged 17 to 24 (21.1%). 8 collisions involved an e-scooter.
| Vehicle | Vehicles | Share in St Albans | Share across GB |
|---|---|---|---|
| Cars and taxis | 1,906 | 73.3% | 69.7% |
| Vans (up to 3.5 tonnes) | 170 | 6.5% | 6.4% |
| Heavy goods vehicles | 137 | 5.3% | 2.3% |
| Motorcycles | 184 | 7.1% | 9.3% |
| Pedal cycles | 154 | 5.9% | 8.7% |
| Buses and minibuses | 22 | 0.8% | 1.8% |
| Other vehicles | 26 | 1.0% | 1.8% |
Collision hotspots in St Albans
These are the 100 metre squares with the most reported collisions in 2021 to 2025. Location is the average position of the collisions in each square, so treat it as approximate.
| # | Where | Junction type | Collisions | Fatal | Map |
|---|---|---|---|---|---|
| 1 | North Orbital Road (A414) | Roundabout | 19 | 0 | View on map |
| 2 | North Orbital Road (A414) | Roundabout | 17 | 0 | View on map |
| 3 | North Orbital Road (A405) | Not at a junction | 17 | 0 | View on map |
| 4 | North Orbital Road (A5183) | Roundabout | 15 | 0 | View on map |
| 5 | Victoria Street (B691) | T or staggered junction | 12 | 0 | View on map |
| 6 | North Orbital Road (A405) | Not at a junction | 11 | 0 | View on map |
| 7 | M1 | Not at a junction | 10 | 0 | View on map |
| 8 | Dunstable Road (A5183) | Roundabout | 10 | 0 | View on map |
| 9 | St Stephen's Hill (B4630) | Not at a junction | 9 | 0 | View on map |
| 10 | North Orbital Road (A414) | Not at a junction | 8 | 1 | View on map |
| 11 | St Albans Road (A1081) | Roundabout | 8 | 0 | View on map |
| 12 | North Orbital Road (M25) | Not at a junction | 8 | 0 | View on map |
| 13 | Breakspear Way (A414) | Roundabout | 8 | 0 | View on map |
| 14 | Sandpit Lane | Not at a junction | 8 | 0 | View on map |
| 15 | St Peter's Street (A1081) | T or staggered junction | 7 | 0 | View on map |
| 16 | Harpenden Road (A1081) | Crossroads | 7 | 0 | View on map |
| 17 | M1 | Not at a junction | 7 | 0 | View on map |
| 18 | St Peter's Street (A4147) | Not at a junction | 7 | 0 | View on map |
| 19 | The Common | Crossroads | 6 | 0 | View on map |
| 20 | Redbourn Road (A5183) | Roundabout | 6 | 0 | View on map |
| 21 | North Orbital Road (A405) | Not at a junction | 6 | 0 | View on map |
| 22 | North Orbital Road (A405) | Not at a junction | 6 | 0 | View on map |
| 23 | Hatfield Road (A1057) | Not at a junction | 6 | 0 | View on map |
| 24 | St Peter's Street (A1081) | T or staggered junction | 6 | 0 | View on map |
| 25 | Avenue Road (B651) | T or staggered junction | 5 | 0 | View on map |
Roads and streets with the most collisions
Each collision is matched to the nearest named road. Long roads and busy town centres collect the most, so this list shows where collisions are recorded, not which streets are riskiest.
| Road or street | Collisions | Fatal | Serious (est.) |
|---|---|---|---|
| North Orbital Road | 146 | 2 | 18 |
| Hatfield Road | 38 | 1 | 7 |
| High Street | 26 | 0 | 5 |
| London Road | 26 | 0 | 6 |
| St Albans Road | 24 | 1 | 8 |
| Lower Luton Road | 21 | 0 | 6 |
| St Peter's Street | 21 | 0 | 5 |
| Redbourn Road | 19 | 2 | 4 |
| Sandpit Lane | 19 | 0 | 5 |
| Holywell Hill | 17 | 0 | 2 |
| Victoria Street | 16 | 0 | 3 |
| Harpenden Road | 16 | 0 | 6 |
| Luton Road | 15 | 0 | 3 |
| Hemel Hempstead Road | 13 | 0 | 4 |
| Watford Road | 11 | 0 | 1 |
Numbered roads with the most collisions
47% of collisions happened on roads with a 30 mph limit or lower (69% nationally), and 38% on roads with a 60 or 70 mph limit (18% nationally). 39% were at or within 20 metres of a junction or roundabout, lower than the national 54%.
| Road | Collisions | Fatal | Serious (est.) |
|---|---|---|---|
| M1 | 229 | 4 | 30 |
| A414 | 113 | 3 | 19 |
| A1081 | 105 | 0 | 28 |
| A5183 | 99 | 2 | 20 |
| M25 | 92 | 1 | 16 |
| A405 | 66 | 1 | 9 |
| A1057 | 38 | 1 | 7 |
| B651 | 30 | 2 | 7 |
| B653 | 27 | 0 | 7 |
| A4147 | 18 | 0 | 4 |
| B691 | 17 | 0 | 3 |
| B487 | 15 | 0 | 3 |
| B4630 | 14 | 0 | 1 |
| B652 | 10 | 0 | 3 |
| B556 | 9 | 0 | 3 |
Only numbered roads are listed here. Named streets are in the table above.
Conditions
29% of collisions in St Albans happened in darkness, close to the 28% across Great Britain. 43% happened on roads classed as urban, lower than the national 67%.
Type of road
| Type of road | Collisions | Share in St Albans | Share across GB |
|---|---|---|---|
| Motorway | 321 | 25.3% | 3.0% |
| A(M) road | 0 | 0.0% | 0.2% |
| A road | 439 | 34.6% | 44.0% |
| B road | 132 | 10.4% | 12.5% |
| C road | 0 | 0.0% | 4.4% |
| Unclassified road | 377 | 29.7% | 35.9% |
Speed limit
| Speed limit | Collisions | Share in St Albans | Share across GB |
|---|---|---|---|
| 20 mph | 72 | 5.7% | 17.1% |
| 30 mph | 529 | 41.7% | 52.0% |
| 40 mph | 120 | 9.5% | 8.7% |
| 50 mph | 69 | 5.4% | 4.4% |
| 60 mph | 109 | 8.6% | 12.2% |
| 70 mph | 370 | 29.2% | 5.5% |
Junctions
| Junctions | Collisions | Share in St Albans | Share across GB |
|---|---|---|---|
| Not at a junction | 762 | 60.7% | 45.9% |
| T or staggered junction | 251 | 20.0% | 28.5% |
| Crossroads | 56 | 4.5% | 9.5% |
| Junction with more than four arms | 3 | 0.2% | 1.6% |
| Private drive or entrance | 4 | 0.3% | 2.2% |
| Other junction | 36 | 2.9% | 6.1% |
| Roundabout | 144 | 11.5% | 6.2% |
Light conditions
| Light conditions | Collisions | Share in St Albans | Share across GB |
|---|---|---|---|
| Daylight | 903 | 71.2% | 71.7% |
| Darkness, street lights lit | 277 | 21.8% | 20.6% |
| Darkness, street lights unlit | 11 | 0.9% | 0.7% |
| Darkness, no street lighting | 44 | 3.5% | 5.3% |
| Darkness, lighting unknown | 34 | 2.7% | 1.7% |
Urban or rural
| Urban or rural | Collisions | Share in St Albans | Share across GB |
|---|---|---|---|
| Urban | 546 | 43.0% | 67.2% |
| Rural | 723 | 57.0% | 32.8% |
About these figures
Only collisions involving injury that were reported to the police are counted. The figures are not adjusted for traffic volume or population, so they should not be used to rank areas against each other. Serious and slight splits use the Department for Transport's severity adjustment. Full explanation.