Event data recorder

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Event Data Recorder

An Event Data Recorder (EDR) is a device installed in automobiles to record technical vehicle and occupant information for a brief period before, during, and after a crash. EDRs are sometimes referred to as "black boxes," similar to those used in aviation, although they serve different purposes and have different functionalities.

Functionality

EDRs capture a variety of data points, including but not limited to:

• Vehicle speed
• Brake application
• Steering angle
• Seatbelt status
• Airbag deployment
• Engine throttle position

The data collected by EDRs can be crucial for accident reconstruction, helping to determine the cause of a crash and improving vehicle safety standards.

History

The concept of EDRs dates back to the late 20th century, with early implementations primarily focused on airbag deployment data. Over time, the scope of data recorded has expanded significantly, driven by advancements in automotive technology and increasing regulatory requirements.

Regulations

In the United States, the National Highway Traffic Safety Administration (NHTSA) has established guidelines for EDRs, including the types of data that must be recorded and the duration of data retention. Similar regulations exist in other regions, such as the European Union.

Privacy Concerns

The use of EDRs has raised privacy concerns among consumers and advocacy groups. Issues include the ownership of the data, access rights, and the potential for misuse. Various jurisdictions have enacted laws to address these concerns, balancing the benefits of EDR data for safety and research with individual privacy rights.

Applications

EDR data is used in several applications, including:

• Crash investigation
• Vehicle safety research
• Insurance claims
• Legal proceedings

Related Technologies

EDRs are part of a broader ecosystem of vehicle safety and data recording technologies, including:

• Telematics
• Advanced Driver Assistance Systems (ADAS)
• Automated driving systems

See Also

• Black box
• Accident reconstruction
• Automotive safety
• National Highway Traffic Safety Administration
• Telematics