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CrashStats

B489 accidents: crash map and statistics

Police recorded 1,098 collisions on the B489 from 1979 to 2025, with 1,572 casualties. Of those crashes, 26 were fatal and 225 serious, and 27 people were killed.

In 2025 there were 12 collisions on the B489, up 9% from 11 in 2024, with 18 casualties.

Collisions since 1979
1,098
993rd highest of 4,923 roads
Casualties
1,572
1.43 per collision
Fatal collisions
26
27 people killed
Serious collisions
225
276 seriously injured
Collisions in 2025
12
Up 9% on 2024
Casualties in 2025
18
Up 13% on 2024

Crash severity on the B489

On the B489, 2.4% of collisions were fatal and 20% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal262.4%
  • Serious22520%
  • Slight84777%

Where the B489 ranks among 4,923 roads

Most collisions
993rd
Most casualties
946th
Most fatal collisions
771st
Most serious collisions
951st

B489 accidents by year

Collisions on the B489 peaked at 50 in 1984 and were down to 12 in 2025.

Collisions and casualties on the B489, 1979 to 2025

  • Collisions
  • Collisions in 2025: 12
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251218
20241116
20231925
20221122
2021910
2020913
20191215
20181725
20171422
20161113
20151417
20142028
20131217
20121522
20111114
20101517
20091824
20081419
20072025
20062131
20052233
20041519
20031925
20022235
20011921
20002233
19992234
19982630
19973554
19962740
19952845
19942537
19933036
19922933
19912335
19903458
19894267
19882543
19872935
19864566
19853957
19845074
19834362
19824461
19813454
19802427
19794065

When crashes happen on the B489

Friday has the most collisions on the B489 (178), and 3pm to 6pm is the busiest time of day (239).

Collisions by day of the week

  • Monday138 (13%)
  • Tuesday144 (13%)
  • Wednesday158 (14%)
  • Thursday171 (16%)
  • Friday178 (16%)
  • Saturday176 (16%)
  • Sunday133 (12%)

Collisions by time of day

  • Midnight to 3am30 (2.7%)
  • 3am to 6am15 (1.4%)
  • 6am to 9am160 (15%)
  • 9am to noon147 (13%)
  • Noon to 3pm192 (17%)
  • 3pm to 6pm239 (22%)
  • 6pm to 9pm205 (19%)
  • 9pm to midnight110 (10%)

Collisions by month

  • January106 (9.7%)
  • February82 (7.5%)
  • March88 (8%)
  • April85 (7.7%)
  • May76 (6.9%)
  • June93 (8.5%)
  • July85 (7.7%)
  • August83 (7.6%)
  • September95 (8.7%)
  • October103 (9.4%)
  • November106 (9.7%)
  • December96 (8.7%)

Light conditions at the time

  • Daylight765 (70%)
  • Dark, no street lighting169 (15%)
  • Dark, street lights lit146 (13%)
  • Dark, lighting unknown12 (1.1%)
  • Dark, street lights unlit6 (0.5%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B489 crashes

On the B489, 52% of collisions happened where the speed limit was 60 mph and 56% on a dry road surface.

Speed limit at the scene

  • 30 mph452 (41%)
  • 40 mph57 (5.2%)
  • 50 mph10 (0.9%)
  • 60 mph569 (52%)
  • 70 mph9 (0.8%)
  • Not recorded1 (0.1%)

Weather at the time

  • Fine, no high winds842 (77%)
  • Raining, no high winds141 (13%)
  • Raining with high winds22 (2%)
  • Fine with high winds17 (1.5%)
  • Other70 (6.4%)
  • Not recorded6 (0.5%)

Road surface

  • Dry618 (56%)
  • Wet or damp422 (38%)
  • Frost or ice37 (3.4%)
  • Snow13 (1.2%)
  • Flood over 3cm deep3 (0.3%)
  • Not recorded5 (0.5%)

Type of road

  • Single carriageway869 (79%)
  • Roundabout149 (14%)
  • Dual carriageway75 (6.8%)
  • One way street or slip road5 (0.5%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B489 crashes

Car occupants make up 67% of the people killed or injured on the B489, followed by motorcyclists (13%).

Casualties by road user

  • Car occupant1,050 (67%)
  • Motorcyclist208 (13%)
  • Cyclist116 (7.4%)
  • Pedestrian90 (5.7%)
  • Van occupant53 (3.4%)
  • Goods vehicle occupant (over 3.5 tonnes)21 (1.3%)
  • Other33 (2.1%)
  • Not recorded1 (0.1%)

Vehicles involved

  • Car1,570 (74%)
  • Motorcycle199 (9.3%)
  • Pedal cycle120 (5.6%)
  • Van or goods vehicle up to 3.5 tonnes113 (5.3%)
  • Goods vehicle over 3.5 tonnes75 (3.5%)
  • Bus or coach17 (0.8%)
  • Other31 (1.5%)
  • Not recorded5 (0.2%)

Casualties by age

  • 0 to 527 (1.7%)
  • 6 to 1037 (2.4%)
  • 11 to 1581 (5.2%)
  • 16 to 20312 (20%)
  • 21 to 25243 (15%)
  • 26 to 35298 (19%)
  • 36 to 45206 (13%)
  • 46 to 55158 (10%)
  • 56 to 65102 (6.5%)
  • 66 to 7556 (3.6%)
  • Over 7538 (2.4%)
  • Not recorded14 (0.9%)

Drivers, passengers and pedestrians

  • Driver or rider1,071 (68%)
  • Passenger411 (26%)
  • Pedestrian90 (5.7%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B489

Map of the 25 most recent crashes on the B489

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B489 crashes by council area

Collisions on the B489 were recorded in 3 council areas. Central Bedfordshire has the most, with 586, followed by Buckinghamshire (394) and Dacorum (115).

Collisions on the B489 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stCentral Bedfordshire58682110103
2ndBuckinghamshire3945801690
3rdDacorum115167031

B489 crashes by town

Collisions on the B489 were recorded in 2 towns and built-up areas, led by Dunstable (394) and Aston Clinton (11).

Recent crashes on the B489

These are the 25 most recent collisions on the B489, from 17 November 2023 to 30 December 2025.

Severity