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CrashStats

A1023 accidents: crash map and statistics

Police recorded 1,488 collisions on the A1023 from 1979 to 2025, with 1,877 casualties. Of those crashes, 10 were fatal and 254 serious, and 10 people were killed.

In 2025 there were 10 collisions on the A1023, up 11% from 9 in 2024, with 15 casualties.

Live A1023 closures, incidents and roadworks are checked every 5 minutes.

Collisions since 1979
1,488
744th highest of 4,923 roads
Casualties
1,877
1.26 per collision
Fatal collisions
10
10 people killed
Serious collisions
254
278 seriously injured
Collisions in 2025
10
Up 11% on 2024
Casualties in 2025
15
Up 50% on 2024

Crash severity on the A1023

On the A1023, 0.7% of collisions were fatal and 17% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal100.7%
  • Serious25417%
  • Slight1,22482%

Where the A1023 ranks among 4,923 roads

Most collisions
744th
Most casualties
798th
Most fatal collisions
1,701st
Most serious collisions
840th

A1023 accidents by year

Collisions on the A1023 peaked at 71 in 1988 and were down to 10 in 2025.

Collisions and casualties on the A1023, 1979 to 2025

  • Collisions
  • Collisions in 2025: 10
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251015
2024910
20231218
20221215
20211113
202089
20191217
20181011
2017914
2016912
20151321
20141418
2013912
20121218
20112429
20101927
20091318
20081315
20072433
20062026
20051722
20042326
20033032
20022529
20012834
20002630
19993136
19983743
19972635
19964457
19955461
19943645
19935770
19924972
19914750
19905665
19896180
19887187
19875871
19864453
19855178
19846380
19836276
19826178
19815262
19805471
19796283

When crashes happen on the A1023

Friday has the most collisions on the A1023 (258), and 3pm to 6pm is the busiest time of day (319).

Collisions by day of the week

  • Monday215 (14%)
  • Tuesday219 (15%)
  • Wednesday207 (14%)
  • Thursday221 (15%)
  • Friday258 (17%)
  • Saturday223 (15%)
  • Sunday145 (9.7%)

Collisions by time of day

  • Midnight to 3am53 (3.6%)
  • 3am to 6am27 (1.8%)
  • 6am to 9am194 (13%)
  • 9am to noon231 (16%)
  • Noon to 3pm275 (18%)
  • 3pm to 6pm319 (21%)
  • 6pm to 9pm232 (16%)
  • 9pm to midnight157 (11%)

Collisions by month

  • January116 (7.8%)
  • February102 (6.9%)
  • March118 (7.9%)
  • April117 (7.9%)
  • May130 (8.7%)
  • June124 (8.3%)
  • July131 (8.8%)
  • August123 (8.3%)
  • September158 (11%)
  • October132 (8.9%)
  • November126 (8.5%)
  • December111 (7.5%)

Light conditions at the time

  • Daylight1,059 (71%)
  • Dark, street lights lit413 (28%)
  • Dark, no street lighting7 (0.5%)
  • Dark, lighting unknown6 (0.4%)
  • Dark, street lights unlit3 (0.2%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A1023 crashes

On the A1023, 56% of collisions happened where the speed limit was 30 mph and 70% on a dry road surface.

Speed limit at the scene

  • 20 mph7 (0.5%)
  • 30 mph837 (56%)
  • 40 mph339 (23%)
  • 50 mph12 (0.8%)
  • 60 mph238 (16%)
  • 70 mph55 (3.7%)

Weather at the time

  • Fine, no high winds1,225 (82%)
  • Raining, no high winds181 (12%)
  • Raining with high winds15 (1%)
  • Fine with high winds13 (0.9%)
  • Other47 (3.2%)
  • Not recorded7 (0.5%)

Road surface

  • Dry1,037 (70%)
  • Wet or damp439 (30%)
  • Frost or ice9 (0.6%)
  • Flood over 3cm deep1 (0.1%)
  • Snow1 (0.1%)
  • Not recorded1 (0.1%)

Type of road

  • Single carriageway1,173 (79%)
  • Roundabout216 (15%)
  • Dual carriageway88 (5.9%)
  • One way street or slip road6 (0.4%)
  • Not recorded5 (0.3%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A1023 crashes

Car occupants make up 60% of the people killed or injured on the A1023, followed by motorcyclists (14%).

Casualties by road user

  • Car occupant1,117 (60%)
  • Motorcyclist264 (14%)
  • Pedestrian246 (13%)
  • Cyclist119 (6.3%)
  • Bus or coach occupant53 (2.8%)
  • Van occupant38 (2%)
  • Goods vehicle occupant (over 3.5 tonnes)14 (0.7%)
  • Other26 (1.4%)

Vehicles involved

  • Car2,136 (74%)
  • Motorcycle273 (9.4%)
  • Van or goods vehicle up to 3.5 tonnes127 (4.4%)
  • Pedal cycle125 (4.3%)
  • Goods vehicle over 3.5 tonnes99 (3.4%)
  • Bus or coach75 (2.6%)
  • Other52 (1.8%)
  • Not recorded2 (0.1%)

Casualties by age

  • 0 to 518 (1%)
  • 6 to 1033 (1.8%)
  • 11 to 1585 (4.5%)
  • 16 to 20355 (19%)
  • 21 to 25242 (13%)
  • 26 to 35374 (20%)
  • 36 to 45251 (13%)
  • 46 to 55178 (9.5%)
  • 56 to 65139 (7.4%)
  • 66 to 7588 (4.7%)
  • Over 7573 (3.9%)
  • Not recorded41 (2.2%)

Drivers, passengers and pedestrians

  • Driver or rider1,145 (61%)
  • Passenger486 (26%)
  • Pedestrian246 (13%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A1023

Map of the 25 most recent crashes on the A1023

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

  • 25 crashes
  • Serious
  • Slight

A1023 crashes by council area

Of the 1,488 collisions on the A1023, 1,482 were in Brentwood.

Collisions on the A1023 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stBrentwood1,4821,86310253

A1023 crashes by town

Collisions on the A1023 were recorded in 2 towns and built-up areas, led by Brentwood (1,016) and Ingatestone (4).

Recent crashes on the A1023

These are the 25 most recent collisions on the A1023, from 7 June 2023 to 15 December 2025.

Severity