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CrashStats

A603 accidents: crash map and statistics

Police recorded 3,399 collisions on the A603 from 1979 to 2025, with 4,417 casualties. Of those crashes, 57 were fatal and 624 serious, and 58 people were killed.

In 2025 there were 31 collisions on the A603, up 11% from 28 in 2024, with 38 casualties.

Live A603 closures, incidents and roadworks are checked every 5 minutes.

Collisions since 1979
3,399
334th highest of 4,923 roads
Casualties
4,417
1.30 per collision
Fatal collisions
57
58 people killed
Serious collisions
624
726 seriously injured
Collisions in 2025
31
Up 11% on 2024
Casualties in 2025
38
Down 3% on 2024

Crash severity on the A603

On the A603, 1.7% of collisions were fatal and 18% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal571.7%
  • Serious62418%
  • Slight2,71880%

Where the A603 ranks among 4,923 roads

Most collisions
334th
Most casualties
344th
Most fatal collisions
376th
Most serious collisions
320th

A603 accidents by year

Collisions on the A603 peaked at 113 in 1986 and were down to 31 in 2025.

Collisions and casualties on the A603, 1979 to 2025

  • Collisions
  • Collisions in 2025: 31
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20253138
20242839
20232431
20222226
20212124
20203038
20193847
20183140
20172435
20163348
20154747
20147187
20134952
20125463
20115669
20107087
20097493
20085468
20076379
200684110
20057499
20046991
200381101
200280106
200192123
200087120
199989113
199886101
1997101131
199685117
1995104134
199485116
199397136
199288121
199199121
1990111144
198992126
1988101140
198797161
1986113146
1985100142
1984106129
198388118
1982106138
19818395
198085108
197996119

When crashes happen on the A603

Friday has the most collisions on the A603 (566), and 3pm to 6pm is the busiest time of day (829).

Collisions by day of the week

  • Monday463 (14%)
  • Tuesday542 (16%)
  • Wednesday536 (16%)
  • Thursday549 (16%)
  • Friday566 (17%)
  • Saturday442 (13%)
  • Sunday301 (8.9%)

Collisions by time of day

  • Midnight to 3am123 (3.6%)
  • 3am to 6am44 (1.3%)
  • 6am to 9am489 (14%)
  • 9am to noon460 (14%)
  • Noon to 3pm610 (18%)
  • 3pm to 6pm829 (24%)
  • 6pm to 9pm506 (15%)
  • 9pm to midnight338 (9.9%)

Collisions by month

  • January307 (9%)
  • February259 (7.6%)
  • March280 (8.2%)
  • April223 (6.6%)
  • May275 (8.1%)
  • June273 (8%)
  • July295 (8.7%)
  • August261 (7.7%)
  • September251 (7.4%)
  • October338 (9.9%)
  • November334 (9.8%)
  • December303 (8.9%)

Light conditions at the time

  • Daylight2,404 (71%)
  • Dark, street lights lit688 (20%)
  • Dark, no street lighting231 (6.8%)
  • Dark, lighting unknown51 (1.5%)
  • Dark, street lights unlit25 (0.7%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A603 crashes

On the A603, 60% of collisions happened where the speed limit was 30 mph and 66% on a dry road surface.

Speed limit at the scene

  • 10 mph4 (0.1%)
  • 20 mph10 (0.3%)
  • 30 mph2,029 (60%)
  • 40 mph191 (5.6%)
  • 50 mph128 (3.8%)
  • 60 mph1,003 (30%)
  • 70 mph34 (1%)

Weather at the time

  • Fine, no high winds2,642 (78%)
  • Raining, no high winds435 (13%)
  • Fine with high winds70 (2.1%)
  • Raining with high winds52 (1.5%)
  • Other145 (4.3%)
  • Not recorded55 (1.6%)

Road surface

  • Dry2,230 (66%)
  • Wet or damp1,072 (32%)
  • Frost or ice67 (2%)
  • Snow13 (0.4%)
  • Other3 (0.1%)
  • Not recorded14 (0.4%)

Type of road

  • Single carriageway2,543 (75%)
  • Roundabout500 (15%)
  • Dual carriageway337 (9.9%)
  • One way street or slip road10 (0.3%)
  • Not recorded9 (0.3%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A603 crashes

Car occupants make up 49% of the people killed or injured on the A603, followed by cyclists (23%).

Casualties by road user

  • Car occupant2,184 (49%)
  • Cyclist1,013 (23%)
  • Motorcyclist588 (13%)
  • Pedestrian379 (8.6%)
  • Van occupant102 (2.3%)
  • Bus or coach occupant58 (1.3%)
  • Other88 (2%)
  • Not recorded5 (0.1%)

Vehicles involved

  • Car4,057 (63%)
  • Pedal cycle1,062 (16%)
  • Motorcycle628 (9.7%)
  • Van or goods vehicle up to 3.5 tonnes297 (4.6%)
  • Goods vehicle over 3.5 tonnes176 (2.7%)
  • Taxi or private hire car85 (1.3%)
  • Other162 (2.5%)
  • Not recorded4 (0.1%)

Casualties by age

  • 0 to 559 (1.3%)
  • 6 to 1073 (1.7%)
  • 11 to 15153 (3.5%)
  • 16 to 20887 (20%)
  • 21 to 25755 (17%)
  • 26 to 35895 (20%)
  • 36 to 45570 (13%)
  • 46 to 55424 (9.6%)
  • 56 to 65269 (6.1%)
  • 66 to 75158 (3.6%)
  • Over 7595 (2.2%)
  • Not recorded79 (1.8%)

Drivers, passengers and pedestrians

  • Driver or rider3,210 (73%)
  • Passenger828 (19%)
  • Pedestrian379 (8.6%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A603

Map of the 25 most recent crashes on the A603

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

A603 crashes by council area

Collisions on the A603 were recorded in 4 council areas. Cambridge has the most, with 1,764, followed by Bedford (760) and South Cambridgeshire (580).

Collisions on the A603 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stCambridge1,7641,99510278
2ndBedford7601,13920147
3rdSouth Cambridgeshire58084419141
4thCentral Bedfordshire289427757

A603 crashes by town

Collisions on the A603 were recorded in 3 towns and built-up areas, led by Cambridge, Cambridge (1,647) and Bedford (246).

Recent crashes on the A603

These are the 25 most recent collisions on the A603, from 5 March to 22 December 2025.

Severity