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CrashStats

A1155 accidents: crash map and statistics

Police recorded 797 collisions on the A1155 from 1979 to 2025, with 1,112 casualties. Of those crashes, 5 were fatal and 113 serious, and 5 people were killed.

In 2025 there were 8 collisions on the A1155, level with 2024, with 11 casualties.

Collisions since 1979
797
1,341st highest of 4,923 roads
Casualties
1,112
1.40 per collision
Fatal collisions
5
5 people killed
Serious collisions
113
133 seriously injured
Collisions in 2025
8
Level with 2024
Casualties in 2025
11
Up 22% on 2024

Crash severity on the A1155

On the A1155, 0.6% of collisions were fatal and 14% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal50.6%
  • Serious11314%
  • Slight67985%

Where the A1155 ranks among 4,923 roads

Most collisions
1,341st
Most casualties
1,299th
Most fatal collisions
2,545th
Most serious collisions
1,716th

A1155 accidents by year

Collisions on the A1155 peaked at 31 in 1982 and were down to 8 in 2025.

Collisions and casualties on the A1155, 1979 to 2025

  • Collisions
  • Collisions in 2025: 8
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025811
202489
2023912
20221120
20211421
2020810
20191115
201849
2017810
20161013
20151115
20141213
20131217
20121621
20111827
20101219
20092127
20082026
20071622
20062131
20051116
20041321
20032543
20021825
20012233
20002740
19992227
19982934
19972431
19962032
19951626
19941520
19931318
19921014
19912534
19901623
19892125
19882025
19872437
19862125
19851317
19843038
19831822
19823149
19812736
19801932
19791721

When crashes happen on the A1155

Thursday has the most collisions on the A1155 (142), and 3pm to 6pm is the busiest time of day (205).

Collisions by day of the week

  • Monday105 (13%)
  • Tuesday123 (15%)
  • Wednesday122 (15%)
  • Thursday142 (18%)
  • Friday126 (16%)
  • Saturday115 (14%)
  • Sunday64 (8%)

Collisions by time of day

  • Midnight to 3am25 (3.1%)
  • 3am to 6am5 (0.6%)
  • 6am to 9am91 (11%)
  • 9am to noon93 (12%)
  • Noon to 3pm168 (21%)
  • 3pm to 6pm205 (26%)
  • 6pm to 9pm130 (16%)
  • 9pm to midnight80 (10%)

Collisions by month

  • January63 (7.9%)
  • February66 (8.3%)
  • March58 (7.3%)
  • April60 (7.5%)
  • May52 (6.5%)
  • June57 (7.2%)
  • July64 (8%)
  • August48 (6%)
  • September75 (9.4%)
  • October70 (8.8%)
  • November89 (11%)
  • December95 (12%)

Light conditions at the time

  • Daylight539 (68%)
  • Dark, street lights lit237 (30%)
  • Dark, lighting unknown12 (1.5%)
  • Dark, street lights unlit8 (1%)
  • Dark, no street lighting1 (0.1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A1155 crashes

On the A1155, 72% of collisions happened where the speed limit was 40 mph and 59% on a dry road surface.

Speed limit at the scene

  • 20 mph1 (0.1%)
  • 30 mph218 (27%)
  • 40 mph573 (72%)
  • 60 mph3 (0.4%)
  • 70 mph2 (0.3%)

Weather at the time

  • Fine, no high winds591 (74%)
  • Raining, no high winds137 (17%)
  • Raining with high winds15 (1.9%)
  • Fine with high winds12 (1.5%)
  • Other34 (4.3%)
  • Not recorded8 (1%)

Road surface

  • Dry472 (59%)
  • Wet or damp307 (39%)
  • Frost or ice11 (1.4%)
  • Snow3 (0.4%)
  • Not recorded4 (0.5%)

Type of road

  • Dual carriageway322 (40%)
  • Single carriageway283 (36%)
  • Roundabout175 (22%)
  • One way street or slip road1 (0.1%)
  • Not recorded16 (2%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A1155 crashes

Car occupants make up 65% of the people killed or injured on the A1155, followed by motorcyclists (18%).

Casualties by road user

  • Car occupant728 (65%)
  • Motorcyclist204 (18%)
  • Pedestrian75 (6.7%)
  • Cyclist52 (4.7%)
  • Bus or coach occupant24 (2.2%)
  • Van occupant16 (1.4%)
  • Taxi or private hire car occupant9 (0.8%)
  • Other4 (0.4%)

Vehicles involved

  • Car1,128 (75%)
  • Motorcycle227 (15%)
  • Pedal cycle56 (3.7%)
  • Van or goods vehicle up to 3.5 tonnes36 (2.4%)
  • Bus or coach31 (2.1%)
  • Taxi or private hire car12 (0.8%)
  • Goods vehicle over 3.5 tonnes8 (0.5%)
  • Other12 (0.8%)

Casualties by age

  • 0 to 523 (2.1%)
  • 6 to 1035 (3.1%)
  • 11 to 1561 (5.5%)
  • 16 to 20236 (21%)
  • 21 to 25159 (14%)
  • 26 to 35209 (19%)
  • 36 to 45156 (14%)
  • 46 to 55117 (11%)
  • 56 to 6562 (5.6%)
  • 66 to 7532 (2.9%)
  • Over 7518 (1.6%)
  • Not recorded4 (0.4%)

Drivers, passengers and pedestrians

  • Driver or rider750 (67%)
  • Passenger287 (26%)
  • Pedestrian75 (6.7%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A1155

Map of the 25 most recent crashes on the A1155

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

  • 25 crashes
  • Serious
  • Slight

A1155 crashes by council area

Of the 797 collisions on the A1155, 793 were in Stevenage.

Collisions on the A1155 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stStevenage7931,1055113

A1155 crashes by town

Of the 797 collisions on the A1155, 794 were in the built-up area of Stevenage.

Recent crashes on the A1155

These are the 25 most recent collisions on the A1155, from 15 January 2023 to 18 December 2025.

Severity