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CrashStats

A23 accidents: crash map and statistics

Police recorded 40,550 collisions on the A23 from 1979 to 2025, with 50,892 casualties. Of those crashes, 480 were fatal and 6,427 serious, and 520 people were killed.

In 2025 there were 500 collisions on the A23, up 6% from 470 in 2024, with 600 casualties.

Live A23 closures, incidents and roadworks are checked every 5 minutes.

Collisions since 1979
40,550
8th highest of 4,923 roads
Casualties
50,892
1.26 per collision
Fatal collisions
480
520 people killed
Serious collisions
6,427
7,187 seriously injured
Collisions in 2025
500
Up 6% on 2024
Casualties in 2025
600
Up 6% on 2024

Crash severity on the A23

On the A23, 1.2% of collisions were fatal and 16% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal4801.2%
  • Serious6,42716%
  • Slight33,64383%

Where the A23 ranks among 4,923 roads

Most collisions
8th
Most casualties
11th
Most fatal collisions
26th
Most serious collisions
8th

A23 accidents by year

Collisions on the A23 peaked at 1,294 in 1989 and were down to 500 in 2025.

Collisions and casualties on the A23, 1979 to 2025

  • Collisions
  • Collisions in 2025: 500
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025500600
2024470564
2023630735
2022576698
2021547661
2020519612
2019585700
2018618769
2017668829
2016729915
2015694854
2014747903
2013658826
2012641791
2011717960
2010644846
2009719903
2008653870
2007659836
2006746983
2005719887
2004737964
20038641,104
20029061,138
20019161,151
20009371,214
19991,0021,241
19989671,222
19979731,276
19969891,219
19959271,183
19949991,256
19939681,237
19929741,220
19911,0041,242
19901,2241,523
19891,2941,600
19881,1831,459
19871,1081,376
19861,1631,501
19851,1791,492
19841,1741,456
19831,1731,435
19821,2421,536
19811,0831,372
19809961,304
19791,1291,429

When crashes happen on the A23

Friday has the most collisions on the A23 (6,533), and 3pm to 6pm is the busiest time of day (8,734).

Collisions by day of the week

  • Monday5,713 (14%)
  • Tuesday5,971 (15%)
  • Wednesday5,853 (14%)
  • Thursday6,167 (15%)
  • Friday6,533 (16%)
  • Saturday5,707 (14%)
  • Sunday4,606 (11%)

Collisions by time of day

  • Midnight to 3am1,909 (4.7%)
  • 3am to 6am1,059 (2.6%)
  • 6am to 9am5,276 (13%)
  • 9am to noon6,084 (15%)
  • Noon to 3pm7,080 (17%)
  • 3pm to 6pm8,734 (22%)
  • 6pm to 9pm6,225 (15%)
  • 9pm to midnight4,183 (10%)

Collisions by month

  • January3,086 (7.6%)
  • February2,981 (7.4%)
  • March3,305 (8.2%)
  • April3,098 (7.6%)
  • May3,356 (8.3%)
  • June3,446 (8.5%)
  • July3,589 (8.9%)
  • August3,457 (8.5%)
  • September3,457 (8.5%)
  • October3,773 (9.3%)
  • November3,719 (9.2%)
  • December3,283 (8.1%)

Light conditions at the time

  • Daylight28,089 (69%)
  • Dark, street lights lit11,221 (28%)
  • Dark, no street lighting647 (1.6%)
  • Dark, lighting unknown437 (1.1%)
  • Dark, street lights unlit156 (0.4%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A23 crashes

On the A23, 75% of collisions happened where the speed limit was 30 mph and 74% on a dry road surface.

Speed limit at the scene

  • 10 mph1 (under 0.1%)
  • 20 mph1,700 (4.2%)
  • 30 mph30,349 (75%)
  • 40 mph2,742 (6.8%)
  • 50 mph765 (1.9%)
  • 60 mph1,408 (3.5%)
  • 70 mph3,583 (8.8%)
  • Not recorded2 (under 0.1%)

Weather at the time

  • Fine, no high winds31,254 (77%)
  • Raining, no high winds4,808 (12%)
  • Raining with high winds484 (1.2%)
  • Fine with high winds374 (0.9%)
  • Other2,736 (6.7%)
  • Not recorded894 (2.2%)

Road surface

  • Dry30,097 (74%)
  • Wet or damp9,711 (24%)
  • Frost or ice339 (0.8%)
  • Snow114 (0.3%)
  • Other75 (0.2%)
  • Not recorded214 (0.5%)

Type of road

  • Single carriageway24,013 (59%)
  • Dual carriageway11,603 (29%)
  • Roundabout2,041 (5%)
  • One way street or slip road1,639 (4%)
  • Not recorded1,254 (3.1%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A23 crashes

Car occupants make up 45% of the people killed or injured on the A23, followed by motorcyclists (17%).

Casualties by road user

  • Car occupant22,875 (45%)
  • Motorcyclist8,770 (17%)
  • Pedestrian8,402 (17%)
  • Cyclist5,058 (9.9%)
  • Bus or coach occupant3,703 (7.3%)
  • Van occupant1,038 (2%)
  • Other1,007 (2%)
  • Not recorded39 (0.1%)

Vehicles involved

  • Car46,561 (64%)
  • Motorcycle9,566 (13%)
  • Pedal cycle5,263 (7.2%)
  • Bus or coach4,536 (6.2%)
  • Van or goods vehicle up to 3.5 tonnes3,695 (5.1%)
  • Goods vehicle over 3.5 tonnes1,794 (2.5%)
  • Other1,589 (2.2%)
  • Not recorded7 (under 0.1%)

Casualties by age

  • 0 to 5828 (1.6%)
  • 6 to 10998 (2%)
  • 11 to 151,823 (3.6%)
  • 16 to 206,543 (13%)
  • 21 to 257,619 (15%)
  • 26 to 3512,030 (24%)
  • 36 to 457,313 (14%)
  • 46 to 555,035 (9.9%)
  • 56 to 653,267 (6.4%)
  • 66 to 751,951 (3.8%)
  • Over 751,343 (2.6%)
  • Not recorded2,142 (4.2%)

Drivers, passengers and pedestrians

  • Driver or rider29,454 (58%)
  • Passenger13,036 (26%)
  • Pedestrian8,402 (17%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A23

Map of the 25 most recent crashes on the A23

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

  • 25 crashes
  • Serious
  • Slight

A23 crashes by council area

Collisions on the A23 were recorded in 7 council areas. Lambeth has the most, with 17,844, followed by Croydon (8,091) and Brighton and Hove (4,480).

Collisions on the A23 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stLambeth17,84420,6631492,674
2ndCroydon8,09110,004691,221
3rdBrighton and Hove4,4805,66752802
4thReigate and Banstead4,2405,76550652
5thMid Sussex3,1845,187118680
6thCrawley2,5893,45339380
7thMole Valley6279110

A23 crashes by town

Collisions on the A23 were recorded in 13 towns and built-up areas, led by Lambeth (16,046) and Croydon (6,988).

Recent crashes on the A23

These are the 25 most recent collisions on the A23, from 14 December to 30 December 2025.

Severity