Theydon Bois road traffic accidents
Theydon Bois recorded 171 collisions in the STATS19 data between 1999 and 2025, involving 207 casualties. Of these collisions, 7 were fatal and 26 were serious. Recorded collisions in 2025 were down 20% on 2024.
Severity Breakdown
- Fatal
- 7
- Serious
- 26
- Casualties
- 207
- Fatal
- 7
- Serious
- 26
- Casualties
- 207
Collisions by Year
Areas covering Theydon Bois
Roads in Theydon Bois
Postcode districts in Theydon Bois
Planning applications nearby
Data from PlanIndex, an index of UK planning registers.
Data from PlanIndex, an index of UK planning registers.
Accidents in Theydon Bois
Road collision statistics for Theydon Bois
Collisions recorded
171
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
207
Casualties recorded across every collision in this area.
Fatal collisions
7
Collisions in which at least one person died.
Serious collisions
26
19.3% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in Theydon Bois
Collisions in Theydon Bois are most frequently recorded on a Saturday (19.9% of the total), with 22.8% happening in darkness rather than daylight. The most common posted speed limit at the scene is 30 mph.
97.1% of recorded collisions in Theydon Bois happen on a single carriageway. Around 8.8% were recorded in adverse weather such as rain, snow or fog.
The collisions in Theydon Bois have produced 207 casualties. Pedestrians account for 13% of those casualties, a marker of the risk to people on foot here.
Collisions by day of the week
Collisions by day of the week: Sunday 23 collisions, Monday 22 collisions, Tuesday 19 collisions, Wednesday 22 collisions, Thursday 27 collisions, Friday 24 collisions, Saturday 34 collisions.
Light conditions
Light conditions: Daylight 132 collisions, Darkness 39 collisions.
Road type
Road type: Single carriageway 166 collisions, Dual carriageway 3 collisions, Unknown 2 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 2 collisions, 30 mph 148 collisions, 40 mph 7 collisions, 60 mph 14 collisions.
Weather at the time
Weather at the time: Fine no high winds 153 collisions, Raining no high winds 13 collisions, Fine + high winds 3 collisions, Other 2 collisions.
Who was hurt
Who was hurt: Driver or rider 142 casualties, Passenger 38 casualties, Pedestrian 27 casualties.
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Recent Accidents
Showing 20 of 171 accidents
Accident 2017420233515
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SlightAccident 2017420200282
SlightAccident 2017420196740
SlightAccident 2017420195134
SlightAccident 2017420194126
SeriousAccident 2017420152022
SlightAccident 2017420152026
SlightAccident 2016420095017
SlightAccident 2016420089554
SlightAccident 2016420081305
SlightAccident 2016420073764
SlightAccident 2016420047588
SeriousAccident 2015420033916
SlightAccident 201542I324110
SlightAccident 201542I213007
SlightAccident 201542I173406
SlightAccident 201542I130604
SlightAccident 201542I072503
SlightFrequently asked questions about road accidents in Theydon Bois
How many road accidents have there been in Theydon Bois?
171 collisions have been recorded in Theydon Bois in the STATS19 road safety data between 1999 and 2025, involving 207 casualties.
How many of the collisions in Theydon Bois were serious or fatal?
7 were fatal and 26 were serious — 19.3% of all recorded collisions in Theydon Bois resulted in a death or serious injury.
When do most road accidents happen in Theydon Bois?
Saturday is the most common day for collisions in Theydon Bois, accounting for 19.9% of them, and 22.8% of all collisions here happen in darkness.
What kind of roads do collisions in Theydon Bois happen on?
97.1% of collisions in Theydon Bois are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in Theydon Bois?
Pedestrians make up 13% of the 207 casualties recorded in Theydon Bois.
Is road safety in Theydon Bois getting better or worse?
Recorded collisions in Theydon Bois fell 20% in 2025 compared with 2024, though year-on-year figures move with both genuine risk and changes in reporting.
Where does the road accident data for Theydon Bois come from?
It comes from STATS19, the official record of personal-injury road collisions reported to the police and published by the Department for Transport. The figures for Theydon Bois cover 1999 to 2025.