"Quiet roads can give a false sense of safety. Our analysis shows the highest risk per vehicle happens after midnight, when visibility drops and fatigue sets in. Understanding when collisions are more likely helps drivers make safer choices - and avoiding those high-risk hours can reduce the chances of an accident that could affect car insurance costs.”
Safest times
The safest time to drive is after sunrise, when visibility improves and roads get steadily busier without a spike in collisions.
- Safest weekday hours: 05:00–07:00, with Wednesday 05:00–06:00 the safest hour of the week
- Safest weekend hours: 09:00–10:00 on both Saturday and Sunday
Most dangerous times
The riskiest hours of the week happen after midnight, when roads appear quiet but collision rates are higher relative to traffic:
- 23:00–04:00 is the most dangerous period overall
- Sunday 03:00–04:00 is the riskiest hour of the week
- Saturday 02:00–03:00 also shows a sharp rise in risk
- On weekdays, 00:00–01:00 and 23:00–00:00 are among the most dangerous hours
Darkness, fatigue and higher late-night speeds all add to the danger during these hours.
What affects how safe it is to drive at different times?
How safe it is to drive can change depending on the time of day and what’s happening around you. Here’s what can impact road safety:
What causes most car accidents in the UK?
Drivers not looking properly is one of the leading causes of accidents.
According to government data, 'ineffective observation', like missing a car at a junction or not checking mirrors, was reported in over 50% of collisions where police assigned a cause.
Other common causes that show up time and time again in police collision reports include:
- Speeding
- Careless or reckless driving
- Driving under the influence
- Driver distraction (like mobile phone use or in-car tech)
- Not wearing a seatbelt
How to drive more safely
Even the best drivers slip into bad habits. These tips can help you stay safe on the road.
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Take breaks on long drives - Tiredness slows your reaction time. Aim to stop every couple of hours on longer journeys.
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Check your lights - You need to see and be seen. Make sure your headlights, brake lights and indicators are working before driving.
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Avoid rush hour if you can - Bumper-to-bumper traffic at 5pm is not ideal and is one of the riskiest times to drive; avoid it if you can.
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Keep your windscreen clear - Dirt, glare and condensation can all reduce visibility. Keep your windscreen clean inside and out.
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Don't rely on tech - Cruise control, lane assist and parking sensors are useful, but don’t rely on them to think for you.
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Don’t drive on autopilot - Stay focused, especially on familiar routes where it’s easy to zone out.
How to stay aware of other road users
Staying aware of different road users can help you avoid accidents, especially when the roads are busy.
The official Highway Code reminds drivers to take extra care around vulnerable road users like children, cyclists and older pedestrians. During the day, watch for schoolchildren and parents near drop-off zones.
Be extra cautious around cyclists and motorcyclists, especially when turning as blind spots can catch you out.
Also stay alert to bin crews and delivery drivers working close to or on the road. In the evening, dog walkers and pedestrians can step out from behind cars or buses with little warning, particularly in dimmer light.



