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CrashStats

A1156 accidents: crash map and statistics

Police recorded 3,012 collisions on the A1156 from 1979 to 2025, with 3,628 casualties. Of those crashes, 30 were fatal and 525 serious, and 32 people were killed.

In 2025 there were 50 collisions on the A1156, up 61% from 31 in 2024, with 62 casualties.

Collisions since 1979
3,012
384th highest of 4,923 roads
Casualties
3,628
1.20 per collision
Fatal collisions
30
32 people killed
Serious collisions
525
579 seriously injured
Collisions in 2025
50
Up 61% on 2024
Casualties in 2025
62
Up 88% on 2024

Crash severity on the A1156

On the A1156, 1% of collisions were fatal and 17% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal301%
  • Serious52517%
  • Slight2,45782%

Where the A1156 ranks among 4,923 roads

Most collisions
384th
Most casualties
432nd
Most fatal collisions
680th
Most serious collisions
400th

A1156 accidents by year

Collisions on the A1156 peaked at 101 in 1988 and were down to 50 in 2025.

Collisions and casualties on the A1156, 1979 to 2025

  • Collisions
  • Collisions in 2025: 50
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20255062
20243133
20233134
20224250
20214050
20203547
20195368
20184151
20173239
20163443
20155970
20146679
20135371
20127690
20117292
20105664
20095968
20087283
20074959
20066681
20055473
20047088
20036786
20025570
20017995
20006271
199991105
199889105
19977788
19965976
19956780
19946479
19937085
19927799
19916886
199089103
198996107
1988101120
19878699
198692123
19857181
19848091
19836674
19825971
19817180
19807588
19796071

When crashes happen on the A1156

Friday has the most collisions on the A1156 (503), and 3pm to 6pm is the busiest time of day (764).

Collisions by day of the week

  • Monday415 (14%)
  • Tuesday483 (16%)
  • Wednesday443 (15%)
  • Thursday479 (16%)
  • Friday503 (17%)
  • Saturday428 (14%)
  • Sunday261 (8.7%)

Collisions by time of day

  • Midnight to 3am97 (3.2%)
  • 3am to 6am35 (1.2%)
  • 6am to 9am414 (14%)
  • 9am to noon435 (14%)
  • Noon to 3pm544 (18%)
  • 3pm to 6pm764 (25%)
  • 6pm to 9pm448 (15%)
  • 9pm to midnight275 (9.1%)

Collisions by month

  • January241 (8%)
  • February201 (6.7%)
  • March224 (7.4%)
  • April238 (7.9%)
  • May244 (8.1%)
  • June257 (8.5%)
  • July261 (8.7%)
  • August235 (7.8%)
  • September267 (8.9%)
  • October282 (9.4%)
  • November284 (9.4%)
  • December278 (9.2%)

Light conditions at the time

  • Daylight2,122 (70%)
  • Dark, street lights lit813 (27%)
  • Dark, no street lighting36 (1.2%)
  • Dark, lighting unknown29 (1%)
  • Dark, street lights unlit11 (0.4%)
  • Not recorded1 (under 0.1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A1156 crashes

On the A1156, 90% of collisions happened where the speed limit was 30 mph and 71% on a dry road surface.

Speed limit at the scene

  • 20 mph1 (under 0.1%)
  • 30 mph2,716 (90%)
  • 40 mph106 (3.5%)
  • 60 mph169 (5.6%)
  • 70 mph20 (0.7%)

Weather at the time

  • Fine, no high winds2,314 (77%)
  • Raining, no high winds368 (12%)
  • Fine with high winds34 (1.1%)
  • Raining with high winds22 (0.7%)
  • Other243 (8.1%)
  • Not recorded31 (1%)

Road surface

  • Dry2,136 (71%)
  • Wet or damp842 (28%)
  • Frost or ice20 (0.7%)
  • Snow8 (0.3%)
  • Other2 (0.1%)
  • Not recorded4 (0.1%)

Type of road

  • Single carriageway2,212 (73%)
  • One way street or slip road356 (12%)
  • Roundabout314 (10%)
  • Dual carriageway123 (4.1%)
  • Not recorded7 (0.2%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A1156 crashes

Car occupants make up 43% of the people killed or injured on the A1156, followed by pedestrians (18%).

Casualties by road user

  • Car occupant1,552 (43%)
  • Pedestrian653 (18%)
  • Motorcyclist613 (17%)
  • Cyclist565 (16%)
  • Bus or coach occupant117 (3.2%)
  • Van occupant50 (1.4%)
  • Other77 (2.1%)
  • Not recorded1 (under 0.1%)

Vehicles involved

  • Car3,534 (65%)
  • Motorcycle666 (12%)
  • Pedal cycle577 (11%)
  • Bus or coach213 (3.9%)
  • Van or goods vehicle up to 3.5 tonnes211 (3.9%)
  • Goods vehicle over 3.5 tonnes100 (1.8%)
  • Other123 (2.3%)
  • Not recorded1 (under 0.1%)

Casualties by age

  • 0 to 549 (1.4%)
  • 6 to 1086 (2.4%)
  • 11 to 15203 (5.6%)
  • 16 to 20722 (20%)
  • 21 to 25467 (13%)
  • 26 to 35644 (18%)
  • 36 to 45474 (13%)
  • 46 to 55372 (10%)
  • 56 to 65260 (7.2%)
  • 66 to 75160 (4.4%)
  • Over 75124 (3.4%)
  • Not recorded67 (1.8%)

Drivers, passengers and pedestrians

  • Driver or rider2,269 (63%)
  • Passenger706 (19%)
  • Pedestrian653 (18%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A1156

Map of the 25 most recent crashes on the A1156

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

  • 25 crashes
  • Serious
  • Slight

A1156 crashes by council area

Collisions on the A1156 were recorded in 2 council areas. Ipswich has the most, with 2,811, followed by East Suffolk (200).

Collisions on the A1156 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stIpswich2,8113,34023492
2ndEast Suffolk200287733

A1156 crashes by town

Of the 3,012 collisions on the A1156, 2,805 were in the built-up area of Ipswich.

Recent crashes on the A1156

These are the 25 most recent collisions on the A1156, from 3 July to 26 December 2025.

Severity