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CrashStats

A3100 accidents: crash map and statistics

Police recorded 2,557 collisions on the A3100 from 1979 to 2025, with 3,325 casualties. Of those crashes, 31 were fatal and 393 serious, and 33 people were killed.

In 2025 there were 24 collisions on the A3100, up 71% from 14 in 2024, with 28 casualties.

Collisions since 1979
2,557
458th highest of 4,923 roads
Casualties
3,325
1.30 per collision
Fatal collisions
31
33 people killed
Serious collisions
393
429 seriously injured
Collisions in 2025
24
Up 71% on 2024
Casualties in 2025
28
Up 87% on 2024

Crash severity on the A3100

On the A3100, 1.2% of collisions were fatal and 15% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal311.2%
  • Serious39315%
  • Slight2,13383%

Where the A3100 ranks among 4,923 roads

Most collisions
458th
Most casualties
483rd
Most fatal collisions
662nd
Most serious collisions
548th

A3100 accidents by year

Collisions on the A3100 peaked at 141 in 1989 and were down to 24 in 2025.

Collisions and casualties on the A3100, 1979 to 2025

  • Collisions
  • Collisions in 2025: 24
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20252428
20241415
20232629
20223643
20212434
20202030
20192123
20181523
20172226
20163952
20154047
20143852
20132933
20124658
20115462
20105474
20093439
20083749
20074666
20064161
20055672
20043655
20034561
20024463
20017095
20005274
19996181
19986788
19976787
19966691
19955672
19945880
19934870
19927192
19915368
199086113
1989141181
19887289
198786125
19867296
198589108
198489106
198378101
198280110
1981101116
198084108
19796979

When crashes happen on the A3100

Friday has the most collisions on the A3100 (454), and 3pm to 6pm is the busiest time of day (630).

Collisions by day of the week

  • Monday376 (15%)
  • Tuesday395 (15%)
  • Wednesday359 (14%)
  • Thursday412 (16%)
  • Friday454 (18%)
  • Saturday332 (13%)
  • Sunday229 (9%)

Collisions by time of day

  • Midnight to 3am68 (2.7%)
  • 3am to 6am25 (1%)
  • 6am to 9am380 (15%)
  • 9am to noon418 (16%)
  • Noon to 3pm477 (19%)
  • 3pm to 6pm630 (25%)
  • 6pm to 9pm355 (14%)
  • 9pm to midnight204 (8%)

Collisions by month

  • January188 (7.4%)
  • February177 (6.9%)
  • March206 (8.1%)
  • April202 (7.9%)
  • May192 (7.5%)
  • June212 (8.3%)
  • July219 (8.6%)
  • August187 (7.3%)
  • September229 (9%)
  • October235 (9.2%)
  • November273 (11%)
  • December237 (9.3%)

Light conditions at the time

  • Daylight1,885 (74%)
  • Dark, street lights lit516 (20%)
  • Dark, lighting unknown90 (3.5%)
  • Dark, no street lighting40 (1.6%)
  • Dark, street lights unlit26 (1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A3100 crashes

On the A3100, 70% of collisions happened where the speed limit was 30 mph and 69% on a dry road surface.

Speed limit at the scene

  • 20 mph4 (0.2%)
  • 30 mph1,793 (70%)
  • 40 mph328 (13%)
  • 50 mph15 (0.6%)
  • 60 mph401 (16%)
  • 70 mph16 (0.6%)

Weather at the time

  • Fine, no high winds1,960 (77%)
  • Raining, no high winds328 (13%)
  • Fine with high winds27 (1.1%)
  • Raining with high winds24 (0.9%)
  • Other76 (3%)
  • Not recorded142 (5.6%)

Road surface

  • Dry1,752 (69%)
  • Wet or damp750 (29%)
  • Frost or ice40 (1.6%)
  • Snow8 (0.3%)
  • Other2 (0.1%)
  • Not recorded5 (0.2%)

Type of road

  • Single carriageway2,122 (83%)
  • Roundabout243 (9.5%)
  • Dual carriageway84 (3.3%)
  • One way street or slip road81 (3.2%)
  • Not recorded27 (1.1%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A3100 crashes

Car occupants make up 53% of the people killed or injured on the A3100, followed by motorcyclists (18%).

Casualties by road user

  • Car occupant1,752 (53%)
  • Motorcyclist589 (18%)
  • Pedestrian435 (13%)
  • Cyclist403 (12%)
  • Van occupant50 (1.5%)
  • Bus or coach occupant45 (1.4%)
  • Other50 (1.5%)
  • Not recorded1 (under 0.1%)

Vehicles involved

  • Car3,389 (70%)
  • Motorcycle607 (13%)
  • Pedal cycle421 (8.7%)
  • Van or goods vehicle up to 3.5 tonnes180 (3.7%)
  • Goods vehicle over 3.5 tonnes79 (1.6%)
  • Bus or coach72 (1.5%)
  • Other vehicle36 (0.7%)
  • Other34 (0.7%)

Casualties by age

  • 0 to 552 (1.6%)
  • 6 to 1061 (1.8%)
  • 11 to 15153 (4.6%)
  • 16 to 20732 (22%)
  • 21 to 25467 (14%)
  • 26 to 35562 (17%)
  • 36 to 45368 (11%)
  • 46 to 55325 (9.8%)
  • 56 to 65196 (5.9%)
  • 66 to 75130 (3.9%)
  • Over 75175 (5.3%)
  • Not recorded104 (3.1%)

Drivers, passengers and pedestrians

  • Driver or rider2,268 (68%)
  • Passenger622 (19%)
  • Pedestrian435 (13%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A3100

Map of the 25 most recent crashes on the A3100

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

  • 25 crashes
  • Serious
  • Slight

A3100 crashes by council area

Collisions on the A3100 were recorded in 4 council areas. Guildford has the most, with 1,476, followed by Waverley (1,019) and Dorset (56).

Collisions on the A3100 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stGuildford1,4761,90811221
2ndWaverley1,0191,32516162
3rdDorset568349
4thBournemouth, Christchurch and Poole5700

A3100 crashes by town

Collisions on the A3100 were recorded in 4 towns and built-up areas, led by Guildford (1,008) and Godalming (519).

Recent crashes on the A3100

These are the 25 most recent collisions on the A3100, from 11 December 2024 to 4 December 2025.

Severity