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CrashStats

A1170 accidents: crash map and statistics

Police recorded 1,999 collisions on the A1170 from 1979 to 2025, with 2,611 casualties. Of those crashes, 24 were fatal and 321 serious, and 24 people were killed.

In 2025 there were 19 collisions on the A1170, down 30% from 27 in 2024, with 27 casualties.

Collisions since 1979
1,999
581st highest of 4,923 roads
Casualties
2,611
1.31 per collision
Fatal collisions
24
24 people killed
Serious collisions
321
365 seriously injured
Collisions in 2025
19
Down 30% on 2024
Casualties in 2025
27
Down 27% on 2024

Crash severity on the A1170

On the A1170, 1.2% of collisions were fatal and 16% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal241.2%
  • Serious32116%
  • Slight1,65483%

Where the A1170 ranks among 4,923 roads

Most collisions
581st
Most casualties
599th
Most fatal collisions
836th
Most serious collisions
666th

A1170 accidents by year

Collisions on the A1170 peaked at 66 in 1996 and were down to 19 in 2025.

Collisions and casualties on the A1170, 1979 to 2025

  • Collisions
  • Collisions in 2025: 19
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251927
20242737
20232026
20222127
20212936
20202224
20191010
20181526
20172636
20163544
20152740
20143446
20133952
20125156
20114254
20103440
20094252
20082536
20072533
20064563
20054664
20044869
20035165
20025370
20014665
20006091
19996292
19984251
19975276
19966684
19955372
19944656
19935372
19925468
19914664
19906574
19895164
19886374
19874659
19864965
19856173
19846483
19834656
19824762
19813844
19803951
19796482

When crashes happen on the A1170

Friday has the most collisions on the A1170 (338), and 3pm to 6pm is the busiest time of day (441).

Collisions by day of the week

  • Monday283 (14%)
  • Tuesday303 (15%)
  • Wednesday299 (15%)
  • Thursday294 (15%)
  • Friday338 (17%)
  • Saturday268 (13%)
  • Sunday214 (11%)

Collisions by time of day

  • Midnight to 3am63 (3.2%)
  • 3am to 6am28 (1.4%)
  • 6am to 9am291 (15%)
  • 9am to noon287 (14%)
  • Noon to 3pm353 (18%)
  • 3pm to 6pm441 (22%)
  • 6pm to 9pm333 (17%)
  • 9pm to midnight203 (10%)

Collisions by month

  • January164 (8.2%)
  • February142 (7.1%)
  • March165 (8.3%)
  • April145 (7.3%)
  • May151 (7.6%)
  • June175 (8.8%)
  • July179 (9%)
  • August151 (7.6%)
  • September174 (8.7%)
  • October186 (9.3%)
  • November184 (9.2%)
  • December183 (9.2%)

Light conditions at the time

  • Daylight1,417 (71%)
  • Dark, street lights lit544 (27%)
  • Dark, lighting unknown18 (0.9%)
  • Dark, no street lighting10 (0.5%)
  • Dark, street lights unlit10 (0.5%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A1170 crashes

On the A1170, 70% of collisions happened where the speed limit was 30 mph and 66% on a dry road surface.

Speed limit at the scene

  • 20 mph6 (0.3%)
  • 30 mph1,409 (70%)
  • 40 mph291 (15%)
  • 50 mph2 (0.1%)
  • 60 mph215 (11%)
  • 70 mph76 (3.8%)

Weather at the time

  • Fine, no high winds1,605 (80%)
  • Raining, no high winds273 (14%)
  • Fine with high winds28 (1.4%)
  • Raining with high winds14 (0.7%)
  • Other56 (2.8%)
  • Not recorded23 (1.2%)

Road surface

  • Dry1,324 (66%)
  • Wet or damp621 (31%)
  • Frost or ice34 (1.7%)
  • Snow5 (0.3%)
  • Other5 (0.3%)
  • Not recorded10 (0.5%)

Type of road

  • Single carriageway1,435 (72%)
  • Roundabout267 (13%)
  • Dual carriageway235 (12%)
  • One way street or slip road61 (3.1%)
  • Not recorded1 (0.1%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A1170 crashes

Car occupants make up 60% of the people killed or injured on the A1170, followed by motorcyclists (13%).

Casualties by road user

  • Car occupant1,560 (60%)
  • Motorcyclist338 (13%)
  • Pedestrian327 (13%)
  • Cyclist281 (11%)
  • Van occupant46 (1.8%)
  • Taxi or private hire car occupant18 (0.7%)
  • Other40 (1.5%)
  • Not recorded1 (under 0.1%)

Vehicles involved

  • Car2,830 (74%)
  • Motorcycle346 (9.1%)
  • Pedal cycle282 (7.4%)
  • Van or goods vehicle up to 3.5 tonnes171 (4.5%)
  • Goods vehicle over 3.5 tonnes74 (1.9%)
  • Bus or coach43 (1.1%)
  • Other vehicle27 (0.7%)
  • Other43 (1.1%)

Casualties by age

  • 0 to 537 (1.4%)
  • 6 to 1068 (2.6%)
  • 11 to 15167 (6.4%)
  • 16 to 20589 (23%)
  • 21 to 25348 (13%)
  • 26 to 35425 (16%)
  • 36 to 45309 (12%)
  • 46 to 55279 (11%)
  • 56 to 65171 (6.5%)
  • 66 to 75114 (4.4%)
  • Over 7590 (3.4%)
  • Not recorded14 (0.5%)

Drivers, passengers and pedestrians

  • Driver or rider1,711 (66%)
  • Passenger573 (22%)
  • Pedestrian327 (13%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A1170

Map of the 25 most recent crashes on the A1170

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

A1170 crashes by council area

Collisions on the A1170 were recorded in 2 council areas. Broxbourne has the most, with 1,314, followed by East Hertfordshire (677).

Collisions on the A1170 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stBroxbourne1,3141,68915207
2ndEast Hertfordshire6779109113

A1170 crashes by town

Collisions on the A1170 were recorded in 3 towns and built-up areas, led by Hoddesdon (1,307) and Ware (369).

Recent crashes on the A1170

These are the 25 most recent collisions on the A1170, from 19 September 2024 to 25 December 2025.

Severity