What is an event data recorder used for?
Nick - Driven Forensics • 22 March 2025

What can an event data recorder tell you?

Before we go any further, I should probably explain what an event data recorder is and where it is found.


What is an event data recorder?

An event data recorder, also known as an EDR, is very similar to a plane black box or flight recorder. In the event of a collision or serious event involving a vehicle, the EDR records information about what the car was doing at the time of the collision and up to 5 seconds prior in half second intervals.


What sort of information does an EDR record?

The information recorded by an EDR varies based on the manufacturer, but generally it includes vehicle speed, whether the brake or accelerator pedal were being pressed, the engine speed (RPM), which seatbelts were clipped in, sometimes which seats were occupied and so more.


How can EDR data be used in a crash?

The usefulness of EDR data in a crash depends a lot on what information is needed. For example the Police might want to know how fast the car was going, whereas, an insurer might want to know who was wearing their seatbelts. If you believe EDR data might assist you, whether you are a car owner, insurer, government or law enforcement agency or even a company, contact us today to have a hassle free, no obligation chat. We can talk through what you are trying to achieve and whether EDR data might be the solution, or even another option.


Which vehicles have EDRs?

Most modern vehicles and even some older vehicles have EDRs fitted as standard. If you would like to know if a vehicle you are interested in has an EDR fitted, contact us today at enquiry@drivenforensics.co.uk . We need to know the make, model, year and ideally the registration number. From there we can determine if your vehicle has an EDR fitted.


Who can recover EDR data?

This is a tricky question as there are generally no hard and fast rules, and it also depends what you are wanting to show. If you are a car owner you can use commercially available tools to recover and access your EDR data, whereas, if you are an insurer intending to use the evidence in Court, you need a EDR expert, such as Driven Forensics. Contact us today as we can help you determine the best way to proceed.

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