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Road collisions in Milton Keynes
Police recorded 1,549 road collisions involving injury in Milton Keynes between 2021 and 2025, about 310 a year. 25 of them were fatal, and an estimated 264 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 5pm to 6pm, and 34% of collisions happened between 3pm and 7pm (higher than the 32% across Great Britain). Friday had the most collisions, and 25% happened at weekends.
Trend over time
Reported collisions went from 328 in 2021 to 267 in 2025, a fall of 19%. Counts are affected by traffic levels, population and changes in how police record injuries, so Milton Keynes should not be ranked against other areas on these numbers alone.
Who is affected
Across Milton Keynes, 1,994 people were injured or killed in these collisions. Pedestrians were 7% of casualties (14% across Great Britain), pedal cyclists 7% (12%) and motorcyclists 11% (12%). Car and taxi occupants made up 69%. 6 of the pedestrians were killed.
Children aged 0 to 15 were 8% of casualties, lower than the 9% national share. People aged 16 to 25 were 21% (21% nationally), and people over 65 were 7% (10% nationally).
| Road user | Casualties | Share in Milton Keynes | Share across GB |
|---|---|---|---|
| Pedestrians | 138 | 6.9% | 14.5% |
| Pedal cyclists | 142 | 7.1% | 11.9% |
| Motorcyclists | 211 | 10.6% | 12.4% |
| Car and taxi occupants | 1,377 | 69.1% | 54.4% |
| Bus and minibus occupants | 15 | 0.8% | 1.8% |
| Van and goods vehicle occupants | 52 | 2.6% | 3.5% |
| Other road users | 59 | 3.0% | 1.6% |
Casualties by age
| Age | Casualties | Share in Milton Keynes | Share across GB |
|---|---|---|---|
| 0 to 5 | 28 | 1.4% | 1.6% |
| 6 to 10 | 47 | 2.4% | 2.6% |
| 11 to 15 | 77 | 3.9% | 4.8% |
| 16 to 20 | 183 | 9.3% | 10.6% |
| 21 to 25 | 235 | 12.0% | 11.0% |
| 26 to 35 | 444 | 22.6% | 20.8% |
| 36 to 45 | 361 | 18.4% | 15.8% |
| 46 to 55 | 273 | 13.9% | 12.8% |
| 56 to 65 | 175 | 8.9% | 10.1% |
| 66 to 75 | 87 | 4.4% | 5.3% |
| Over 75 | 53 | 2.7% | 4.5% |
Vehicles involved
8.3% of collisions involved a pedestrian casualty (17.7% nationally), 9.2% a cyclist (15.0%) and 13.2% a motorcyclist (15.3%). 5.4% involved a goods vehicle (3.9% nationally) and 20.9% involved a driver aged 17 to 24 (21.1%). 54 collisions involved an e-scooter.
| Vehicle | Vehicles | Share in Milton Keynes | Share across GB |
|---|---|---|---|
| Cars and taxis | 2,245 | 76.9% | 69.7% |
| Vans (up to 3.5 tonnes) | 129 | 4.4% | 6.4% |
| Heavy goods vehicles | 86 | 2.9% | 2.3% |
| Motorcycles | 215 | 7.4% | 9.3% |
| Pedal cycles | 146 | 5.0% | 8.7% |
| Buses and minibuses | 26 | 0.9% | 1.8% |
| Other vehicles | 73 | 2.5% | 1.8% |
Collision hotspots in Milton Keynes
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 | Watling Street (A421) | Not at a junction | 12 | 0 | View on map |
| 2 | Standing Way (A421) | Not at a junction | 11 | 0 | View on map |
| 3 | Tongwell Street (A4146) | Not at a junction | 10 | 0 | View on map |
| 4 | Monks Way (A422) | Not at a junction | 8 | 0 | View on map |
| 5 | Standing Way (A421) | Not at a junction | 8 | 0 | View on map |
| 6 | Groveway (A4146) | Not at a junction | 8 | 0 | View on map |
| 7 | Standing Way (A421) | Not at a junction | 8 | 0 | View on map |
| 8 | Standing Way (A421) | Not at a junction | 8 | 0 | View on map |
| 9 | Watling Street (B4034) | Not at a junction | 7 | 0 | View on map |
| 10 | Tongwell Street (A4146) | Not at a junction | 7 | 0 | View on map |
| 11 | Tongwell Street (A4146) | Not at a junction | 7 | 0 | View on map |
| 12 | Brickhill Street | Not at a junction | 6 | 0 | View on map |
| 13 | Water Eaton Road (B4034) | Not at a junction | 6 | 0 | View on map |
| 14 | Findlay Way | T or staggered junction | 6 | 0 | View on map |
| 15 | Childs Way (A4146) | Not at a junction | 6 | 0 | View on map |
| 16 | Watling Street | Not at a junction | 6 | 0 | View on map |
| 17 | A509 | Not at a junction | 6 | 0 | View on map |
| 18 | Chaffron Way | Not at a junction | 6 | 0 | View on map |
| 19 | Chaffron Way | Not at a junction | 6 | 0 | View on map |
| 20 | Marlborough Street (A422) | Not at a junction | 6 | 0 | View on map |
| 21 | Bletcham Way (A4146) | Not at a junction | 6 | 0 | View on map |
| 22 | Marlborough Street (B4034) | Not at a junction | 6 | 0 | View on map |
| 23 | Monks Way (A422) | Not at a junction | 6 | 0 | View on map |
| 24 | Chaffron Way | T or staggered junction | 6 | 0 | View on map |
| 25 | Tongwell Street (A4146) | Not at a junction | 5 | 1 | 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.) |
|---|---|---|---|
| Standing Way | 104 | 0 | 18 |
| Watling Street | 68 | 0 | 12 |
| Portway | 52 | 0 | 4 |
| Marlborough Street | 51 | 1 | 13 |
| Childs Way | 50 | 1 | 8 |
| Chaffron Way | 50 | 0 | 13 |
| Tongwell Street | 38 | 2 | 4 |
| Monks Way | 36 | 1 | 6 |
| Saxon Street | 36 | 0 | 1 |
| Brickhill Street | 34 | 0 | 6 |
| Newport Road | 27 | 0 | 1 |
| Grafton Street | 25 | 0 | 2 |
| Bletcham Way | 24 | 1 | 4 |
| Dansteed Way | 21 | 0 | 3 |
| Great Monks Street | 16 | 0 | 2 |
Numbered roads with the most collisions
38% of collisions happened on roads with a 30 mph limit or lower (69% nationally), and 55% on roads with a 60 or 70 mph limit (18% nationally). 37% were at or within 20 metres of a junction or roundabout, lower than the national 54%.
| Road | Collisions | Fatal | Serious (est.) |
|---|---|---|---|
| A421 | 102 | 0 | 20 |
| B4034 | 99 | 0 | 26 |
| A509 | 94 | 0 | 20 |
| M1 | 86 | 4 | 10 |
| A5 | 56 | 5 | 6 |
| A4146 | 43 | 0 | 6 |
| A422 | 34 | 1 | 7 |
| B526 | 11 | 0 | 2 |
| A5130 | 4 | 0 | 1 |
| A428 | 3 | 0 | 2 |
| B5130 | 1 | 0 | 0 |
| B4146 | 1 | 0 | 0 |
| B3034 | 1 | 0 | 1 |
| B5388 | 1 | 0 | 0 |
| B4043 | 1 | 0 | 0 |
Only numbered roads are listed here. Named streets are in the table above.
Conditions
28% of collisions in Milton Keynes happened in darkness, close to the 28% across Great Britain. 49% happened on roads classed as urban, lower than the national 67%.
Type of road
| Type of road | Collisions | Share in Milton Keynes | Share across GB |
|---|---|---|---|
| Motorway | 86 | 5.6% | 3.0% |
| A(M) road | 0 | 0.0% | 0.2% |
| A road | 336 | 21.7% | 44.0% |
| B road | 115 | 7.4% | 12.5% |
| C road | 378 | 24.4% | 4.4% |
| Unclassified road | 634 | 40.9% | 35.9% |
Speed limit
| Speed limit | Collisions | Share in Milton Keynes | Share across GB |
|---|---|---|---|
| 20 mph | 15 | 1.0% | 17.1% |
| 30 mph | 567 | 36.6% | 52.0% |
| 40 mph | 119 | 7.7% | 8.7% |
| 50 mph | 3 | 0.2% | 4.4% |
| 60 mph | 433 | 28.0% | 12.2% |
| 70 mph | 411 | 26.6% | 5.5% |
Junctions
| Junctions | Collisions | Share in Milton Keynes | Share across GB |
|---|---|---|---|
| Not at a junction | 972 | 62.8% | 45.9% |
| T or staggered junction | 406 | 26.2% | 28.5% |
| Crossroads | 36 | 2.3% | 9.5% |
| Junction with more than four arms | 0 | 0.0% | 1.6% |
| Private drive or entrance | 4 | 0.3% | 2.2% |
| Other junction | 24 | 1.6% | 6.1% |
| Roundabout | 106 | 6.8% | 6.2% |
Light conditions
| Light conditions | Collisions | Share in Milton Keynes | Share across GB |
|---|---|---|---|
| Daylight | 1,108 | 71.5% | 71.7% |
| Darkness, street lights lit | 99 | 6.4% | 20.6% |
| Darkness, street lights unlit | 9 | 0.6% | 0.7% |
| Darkness, no street lighting | 20 | 1.3% | 5.3% |
| Darkness, lighting unknown | 313 | 20.2% | 1.7% |
Urban or rural
| Urban or rural | Collisions | Share in Milton Keynes | Share across GB |
|---|---|---|---|
| Urban | 758 | 48.9% | 67.2% |
| Rural | 791 | 51.1% | 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.