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Road collisions in South Cambridgeshire
Police recorded 1,348 road collisions involving injury in South Cambridgeshire between 2021 and 2025, about 270 a year. 47 of them were fatal, and an estimated 377 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 33% of collisions happened between 3pm and 7pm (close to the 32% across Great Britain). Friday had the most collisions, and 21% happened at weekends.
Trend over time
Reported collisions went from 247 in 2021 to 269 in 2025, a rise of 9%. Counts are affected by traffic levels, population and changes in how police record injuries, so South Cambridgeshire should not be ranked against other areas on these numbers alone.
Who is affected
Across South Cambridgeshire, 2,000 people were injured or killed in these collisions. Pedestrians were 3% of casualties (14% across Great Britain), pedal cyclists 10% (12%) and motorcyclists 10% (12%). Car and taxi occupants made up 66%. 7 of the pedestrians were killed.
Children aged 0 to 15 were 7% of casualties, lower than the 9% national share. People aged 16 to 25 were 19% (21% nationally), and people over 65 were 11% (10% nationally).
| Road user | Casualties | Share in South Cambridgeshire | Share across GB |
|---|---|---|---|
| Pedestrians | 63 | 3.1% | 14.5% |
| Pedal cyclists | 195 | 9.8% | 11.9% |
| Motorcyclists | 204 | 10.2% | 12.4% |
| Car and taxi occupants | 1,329 | 66.5% | 54.4% |
| Bus and minibus occupants | 37 | 1.8% | 1.8% |
| Van and goods vehicle occupants | 146 | 7.3% | 3.5% |
| Other road users | 26 | 1.3% | 1.6% |
Casualties by age
| Age | Casualties | Share in South Cambridgeshire | Share across GB |
|---|---|---|---|
| 0 to 5 | 36 | 1.8% | 1.6% |
| 6 to 10 | 37 | 1.9% | 2.6% |
| 11 to 15 | 59 | 3.0% | 4.8% |
| 16 to 20 | 192 | 9.8% | 10.6% |
| 21 to 25 | 189 | 9.7% | 11.0% |
| 26 to 35 | 375 | 19.2% | 20.8% |
| 36 to 45 | 335 | 17.2% | 15.8% |
| 46 to 55 | 268 | 13.7% | 12.8% |
| 56 to 65 | 234 | 12.0% | 10.1% |
| 66 to 75 | 129 | 6.6% | 5.3% |
| Over 75 | 98 | 5.0% | 4.5% |
Vehicles involved
4.6% of collisions involved a pedestrian casualty (17.7% nationally), 13.9% a cyclist (15.0%) and 14.6% a motorcyclist (15.3%). 10.2% involved a goods vehicle (3.9% nationally) and 22.0% involved a driver aged 17 to 24 (21.1%). 13 collisions involved an e-scooter.
| Vehicle | Vehicles | Share in South Cambridgeshire | Share across GB |
|---|---|---|---|
| Cars and taxis | 1,820 | 68.1% | 69.7% |
| Vans (up to 3.5 tonnes) | 225 | 8.4% | 6.4% |
| Heavy goods vehicles | 147 | 5.5% | 2.3% |
| Motorcycles | 214 | 8.0% | 9.3% |
| Pedal cycles | 201 | 7.5% | 8.7% |
| Buses and minibuses | 24 | 0.9% | 1.8% |
| Other vehicles | 42 | 1.6% | 1.8% |
Collision hotspots in South Cambridgeshire
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 | Babraham Road (A1307) | T or staggered junction | 8 | 0 | View on map |
| 2 | London Road (A1304) | Crossroads | 8 | 0 | View on map |
| 3 | Ermine Street (A428) | Not at a junction | 7 | 0 | View on map |
| 4 | Bridge Road (B1049) | Not at a junction | 6 | 1 | View on map |
| 5 | Ely Road (A10) | T or staggered junction | 6 | 0 | View on map |
| 6 | A428 | T or staggered junction | 6 | 0 | View on map |
| 7 | Cambridge Road (A428) | Not at a junction | 6 | 0 | View on map |
| 8 | A14 | Not at a junction | 6 | 0 | View on map |
| 9 | Cambridge Road (B1049) | T or staggered junction | 6 | 0 | View on map |
| 10 | London Road (A1301) | T or staggered junction | 5 | 0 | View on map |
| 11 | Huntingdon Road (A1307) | Roundabout | 5 | 0 | View on map |
| 12 | M11 | Not at a junction | 5 | 0 | View on map |
| 13 | Causeway (A1301) | Not at a junction | 5 | 0 | View on map |
| 14 | Tower Road | T or staggered junction | 5 | 0 | View on map |
| 15 | Barley Road (A505) | Not at a junction | 5 | 0 | View on map |
| 16 | Ermine Street South (A1198) | Roundabout | 5 | 0 | View on map |
| 17 | A505 | T or staggered junction | 5 | 0 | View on map |
| 18 | Cambridge Road (A14) | Not at a junction | 4 | 0 | View on map |
| 19 | Shelford Road (B1368) | T or staggered junction | 4 | 0 | View on map |
| 20 | A10 | T or staggered junction | 4 | 0 | View on map |
| 21 | A14 | Not at a junction | 4 | 0 | View on map |
| 22 | Cambridge Road (A1307) | Other junction | 4 | 0 | View on map |
| 23 | Ermine Street (A1198) | Not at a junction | 4 | 0 | View on map |
| 24 | M11 | Not at a junction | 4 | 0 | View on map |
| 25 | Cambridge Road (A10) | T or staggered junction | 4 | 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.) |
|---|---|---|---|
| Cambridge Road | 104 | 2 | 29 |
| Huntingdon Road | 52 | 1 | 5 |
| High Street | 48 | 0 | 14 |
| Newmarket Road | 39 | 2 | 12 |
| Ely Road | 34 | 4 | 10 |
| London Road | 26 | 0 | 7 |
| Babraham Road | 22 | 1 | 4 |
| Station Road | 20 | 1 | 10 |
| Old North Road | 19 | 0 | 9 |
| St Neots Road | 17 | 1 | 9 |
| Royston Road | 13 | 1 | 3 |
| Bridge Road | 12 | 1 | 6 |
| Cherry Hinton Road | 9 | 0 | 0 |
| Ermine Street | 8 | 0 | 1 |
| King's Hedges Road | 8 | 0 | 1 |
Numbered roads with the most collisions
30% of collisions happened on roads with a 30 mph limit or lower (69% nationally), and 47% 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.) |
|---|---|---|---|
| A14 | 120 | 3 | 24 |
| A10 | 103 | 8 | 32 |
| M11 | 102 | 3 | 24 |
| A1307 | 90 | 6 | 20 |
| A505 | 75 | 5 | 21 |
| A428 | 62 | 2 | 11 |
| A1198 | 54 | 2 | 14 |
| B1049 | 52 | 1 | 20 |
| A1303 | 44 | 3 | 15 |
| A11 | 37 | 1 | 4 |
| A1301 | 32 | 2 | 10 |
| B1046 | 22 | 0 | 6 |
| B1050 | 21 | 1 | 7 |
| A603 | 19 | 1 | 2 |
| A1304 | 11 | 0 | 2 |
Only numbered roads are listed here. Named streets are in the table above.
Conditions
27% of collisions in South Cambridgeshire happened in darkness, close to the 28% across Great Britain. 9% happened on roads classed as urban, lower than the national 67%.
Type of road
| Type of road | Collisions | Share in South Cambridgeshire | Share across GB |
|---|---|---|---|
| Motorway | 102 | 7.6% | 3.0% |
| A(M) road | 0 | 0.0% | 0.2% |
| A road | 651 | 48.3% | 44.0% |
| B road | 138 | 10.2% | 12.5% |
| C road | 0 | 0.0% | 4.4% |
| Unclassified road | 457 | 33.9% | 35.9% |
Speed limit
| Speed limit | Collisions | Share in South Cambridgeshire | Share across GB |
|---|---|---|---|
| 20 mph | 44 | 3.3% | 17.1% |
| 30 mph | 367 | 27.2% | 52.0% |
| 40 mph | 152 | 11.3% | 8.7% |
| 50 mph | 152 | 11.3% | 4.4% |
| 60 mph | 393 | 29.2% | 12.2% |
| 70 mph | 240 | 17.8% | 5.5% |
Junctions
| Junctions | Collisions | Share in South Cambridgeshire | Share across GB |
|---|---|---|---|
| Not at a junction | 816 | 61.3% | 45.9% |
| T or staggered junction | 342 | 25.7% | 28.5% |
| Crossroads | 46 | 3.5% | 9.5% |
| Junction with more than four arms | 0 | 0.0% | 1.6% |
| Private drive or entrance | 6 | 0.5% | 2.2% |
| Other junction | 39 | 2.9% | 6.1% |
| Roundabout | 82 | 6.2% | 6.2% |
Light conditions
| Light conditions | Collisions | Share in South Cambridgeshire | Share across GB |
|---|---|---|---|
| Daylight | 986 | 73.1% | 71.7% |
| Darkness, street lights lit | 158 | 11.7% | 20.6% |
| Darkness, street lights unlit | 3 | 0.2% | 0.7% |
| Darkness, no street lighting | 175 | 13.0% | 5.3% |
| Darkness, lighting unknown | 26 | 1.9% | 1.7% |
Urban or rural
| Urban or rural | Collisions | Share in South Cambridgeshire | Share across GB |
|---|---|---|---|
| Urban | 120 | 8.9% | 67.2% |
| Rural | 1,228 | 91.1% | 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.