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CrashStats

A329(M) accidents: crash map and statistics

Police recorded 825 collisions on the A329(M) from 1979 to 2025, with 1,154 casualties. Of those crashes, 17 were fatal and 125 serious, and 18 people were killed.

In 2025 there were 7 collisions on the A329(M), up 133% from 3 in 2024, with 9 casualties.

Collisions since 1979
825
1,288th highest of 4,923 roads
Casualties
1,154
1.40 per collision
Fatal collisions
17
18 people killed
Serious collisions
125
146 seriously injured
Collisions in 2025
7
Up 133% on 2024
Casualties in 2025
9
Up 125% on 2024

Crash severity on the A329(M)

On the A329(M), 2.1% of collisions were fatal and 15% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal172.1%
  • Serious12515%
  • Slight68383%

Where the A329(M) ranks among 4,923 roads

Most collisions
1,288th
Most casualties
1,264th
Most fatal collisions
1,125th
Most serious collisions
1,602nd

A329(M) accidents by year

Collisions on the A329(M) peaked at 33 in 1990 and were down to 7 in 2025.

Collisions and casualties on the A329(M), 1979 to 2025

  • Collisions
  • Collisions in 2025: 7
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202579
202434
202367
20221726
202179
202048
201946
2018911
2017911
20161320
201555
20141625
20131719
20121423
20112127
20101924
20092027
20081417
20071621
20063143
20053037
20042739
20031924
20022231
20012539
20001927
19992637
19982033
19972739
19963250
19952538
19941323
19932736
19922843
19912024
19903340
19891923
19882632
19871926
19862126
19852026
19842233
19831017
19821320
19811016
19801219
1979814

When crashes happen on the A329(M)

Monday has the most collisions on the A329(M) (145), and 3pm to 6pm is the busiest time of day (164).

Collisions by day of the week

  • Monday145 (18%)
  • Tuesday125 (15%)
  • Wednesday99 (12%)
  • Thursday106 (13%)
  • Friday142 (17%)
  • Saturday105 (13%)
  • Sunday103 (12%)

Collisions by time of day

  • Midnight to 3am49 (5.9%)
  • 3am to 6am31 (3.8%)
  • 6am to 9am158 (19%)
  • 9am to noon109 (13%)
  • Noon to 3pm111 (13%)
  • 3pm to 6pm164 (20%)
  • 6pm to 9pm137 (17%)
  • 9pm to midnight66 (8%)

Collisions by month

  • January82 (9.9%)
  • February68 (8.2%)
  • March64 (7.8%)
  • April70 (8.5%)
  • May60 (7.3%)
  • June58 (7%)
  • July57 (6.9%)
  • August47 (5.7%)
  • September60 (7.3%)
  • October75 (9.1%)
  • November96 (12%)
  • December88 (11%)

Light conditions at the time

  • Daylight527 (64%)
  • Dark, no street lighting211 (26%)
  • Dark, street lights lit70 (8.5%)
  • Dark, street lights unlit11 (1.3%)
  • Dark, lighting unknown6 (0.7%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A329(M) crashes

On the A329(M), 91% of collisions happened where the speed limit was 70 mph and 55% on a dry road surface.

Speed limit at the scene

  • 30 mph12 (1.5%)
  • 40 mph32 (3.9%)
  • 50 mph15 (1.8%)
  • 60 mph12 (1.5%)
  • 70 mph754 (91%)

Weather at the time

  • Fine, no high winds612 (74%)
  • Raining, no high winds138 (17%)
  • Fog or mist17 (2.1%)
  • Raining with high winds16 (1.9%)
  • Other41 (5%)
  • Not recorded1 (0.1%)

Road surface

  • Dry455 (55%)
  • Wet or damp322 (39%)
  • Frost or ice35 (4.2%)
  • Flood over 3cm deep7 (0.8%)
  • Snow5 (0.6%)
  • Oil or diesel1 (0.1%)

Type of road

  • Dual carriageway630 (76%)
  • One way street or slip road153 (19%)
  • Roundabout34 (4.1%)
  • Single carriageway8 (1%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A329(M) crashes

Car occupants make up 84% of the people killed or injured on the A329(M), followed by motorcyclists (6.8%).

Casualties by road user

  • Car occupant972 (84%)
  • Motorcyclist79 (6.8%)
  • Van occupant54 (4.7%)
  • Goods vehicle occupant (over 3.5 tonnes)15 (1.3%)
  • Other vehicle occupant13 (1.1%)
  • Pedestrian12 (1%)
  • Taxi or private hire car occupant6 (0.5%)
  • Other3 (0.3%)

Vehicles involved

  • Car1,259 (84%)
  • Motorcycle78 (5.2%)
  • Van or goods vehicle up to 3.5 tonnes73 (4.9%)
  • Goods vehicle over 3.5 tonnes62 (4.1%)
  • Other vehicle9 (0.6%)
  • Taxi or private hire car7 (0.5%)
  • Other4 (0.3%)
  • Not recorded5 (0.3%)

Casualties by age

  • 0 to 511 (1%)
  • 6 to 1021 (1.8%)
  • 11 to 1515 (1.3%)
  • 16 to 20154 (13%)
  • 21 to 25242 (21%)
  • 26 to 35320 (28%)
  • 36 to 45168 (15%)
  • 46 to 55107 (9.3%)
  • 56 to 6571 (6.2%)
  • 66 to 7525 (2.2%)
  • Over 7510 (0.9%)
  • Not recorded10 (0.9%)

Drivers, passengers and pedestrians

  • Driver or rider858 (74%)
  • Passenger284 (25%)
  • Pedestrian12 (1%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A329(M)

Map of the 25 most recent crashes on the A329(M)

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

A329(M) crashes by council area

Of the 825 collisions on the A329(M), 820 were in Wokingham.

Collisions on the A329(M) in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stWokingham8201,14917125

A329(M) crashes by town

Collisions on the A329(M) were recorded in 4 towns and built-up areas, led by Reading (58) and Winnersh (34).

Recent crashes on the A329(M)

These are the 25 most recent collisions on the A329(M), from 30 April 2022 to 16 December 2025.

Severity