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CrashStats

CB21 road accidents: crash map and statistics

Police recorded 3,176 road traffic collisions in the CB21 postcode district, South Cambridgeshire, from 1979 to 2025, and 4,621 people were killed or injured in them. Of those collisions, 104 were fatal and 814 were serious.

In 2025 police recorded 31 collisions, up 3% on 2024 (30).

Collisions since 1979
3,176
1,234th highest of 2,813 postcode districts
Casualties
4,621
1.45 per collision
Fatal collisions
104
118 people killed
Serious collisions
814
1,004 seriously injured
Collisions in 2025
31
Up 3% on 2024
Casualties in 2025
48
Up 9% on 2024

Road collision statistics for CB21

Collisions by severity, 1979 to 2025

  • Fatal1043.3%
  • Serious81426%
  • Slight2,25871%

What the data shows

  • CB21 had 310 collisions from 2016 to 2025, 38% fewer than the 499 from 2006 to 2015.
  • 29% of collisions in CB21 were fatal or serious, against 20% across Great Britain.
  • 394 children under 16 were killed or injured in CB21, 8.6% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 39% of collisions in CB21.

Where CB21 ranks among 2,813 postcode districts

Most collisions
1,234th
Most casualties
1,112th
Most fatal collisions
253rd
Most serious collisions
705th

Collisions by day of the week

  • Monday451 (14%)
  • Tuesday452 (14%)
  • Wednesday462 (15%)
  • Thursday459 (14%)
  • Friday525 (17%)
  • Saturday470 (15%)
  • Sunday357 (11%)

Light conditions

  • Daylight2,270 (71%)
  • Dark, no street lighting486 (15%)
  • Dark, street lights lit310 (9.8%)
  • Dark, street lights unlit56 (1.8%)
  • Dark, lighting unknown54 (1.7%)

Type of road

  • Single carriageway2,511 (79%)
  • Dual carriageway458 (14%)
  • Roundabout145 (4.6%)
  • One way street or slip road44 (1.4%)
  • Not recorded18 (0.6%)

Speed limit at the scene

  • 15 mph1 (under 0.1%)
  • 20 mph10 (0.3%)
  • 30 mph904 (28%)
  • 40 mph146 (4.6%)
  • 50 mph63 (2%)
  • 60 mph1,682 (53%)
  • 70 mph370 (12%)

Weather at the time

  • Fine, no high winds2,362 (74%)
  • Raining, no high winds395 (12%)
  • Fine with high winds82 (2.6%)
  • Raining with high winds70 (2.2%)
  • Fog or mist63 (2%)
  • Snowing, no high winds17 (0.5%)
  • Snowing with high winds9 (0.3%)
  • Other121 (3.8%)
  • Not recorded57 (1.8%)

Who was hurt

  • Car occupant3,144 (68%)
  • Motorcyclist541 (12%)
  • Cyclist341 (7.4%)
  • Pedestrian241 (5.2%)
  • Van occupant171 (3.7%)
  • Goods vehicle occupant (over 3.5 tonnes)79 (1.7%)
  • Taxi or private hire car occupant30 (0.6%)
  • Other vehicle occupant27 (0.6%)
  • Bus or coach occupant21 (0.5%)
  • Minibus occupant20 (0.4%)
  • Other5 (0.1%)
  • Not recorded1 (under 0.1%)

Source: Department for Transport, STATS19 road safety data

CB21 road accidents by year

Collisions and casualties in CB21, 1979 to 2025

Collisions in CB21 peaked at 166 in 1980; 2025 had 31.

  • Collisions
  • Collisions in 2025: 31
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20253148
20243044
20233345
20221826
20212735
20201932
20193751
20183048
20174263
20164364
20153956
20144161
20133140
20125067
20114768
20105270
20094362
200868105
20076696
20066298
200579125
200481108
200379111
200274104
200181124
200075123
199970108
199873116
199783123
19965579
19956395
199481130
199393130
199298149
199197168
199096145
198987132
1988144211
198771102
198673110
198563107
198480109
198380118
1982109150
1981131159
1980166200
197985106

Map of recent crashes in CB21

Map of the 24 most recent crashes in CB21

Use the arrow keys to move the map and the plus and minus keys to zoom.

  • 24 crashes
  • Serious
  • Slight

Recent road crashes in CB21

The 24 most recent collisions in CB21 happened between 27 March and 13 December 2025.

Severity

Crashes by road in CB21

The A1307 has the most collisions in CB21, 589 of 3,176 (19%), followed by the A11 (561).

Collisions in CB21 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA130758993038122
2ndA1156191814117
3rdA6042915071597
4thB1052243315367
5thA11344659110
6thA6032931010
7thA1303253108
8thA505243203
9thA1309141605
10thA10121304
11thB1049121406
12thA45111212
13thA13015704
14thB10474402
15thB11023301

Council areas covering CB21

Collisions in CB21 were recorded in 5 council areas. South Cambridgeshire has 2,714 of 3,176 (85%).

Collisions in CB21 by council area, 1979 to 2025
RankCouncil areaCollisionsCasualtiesFatalSerious
1stSouth Cambridgeshire2,7144,06197678
2ndCambridge3714333109
3rdUttlesford6392321
4thEast Cambridgeshire212506
5thWest Suffolk4710

Towns in CB21

Collisions in CB21 were recorded in 2 towns, led by Fulbourn (232) and Linton, South Cambridgeshire (203).