Fatal Motor Vehicle Accident Auxiliary Data for 2023

The Fatality Analysis Reporting System (FARS) 2023 Auxiliary File contains derived elements from fatal motor vehicle accident data for the calendar year 2023. It was compiled by the National Highway Traffic Safety Administration (NHTSA) to facilitate extraction of specific data classifications and topical areas. The dataset is part of the U.S. Department of Transportation's National Transportation Atlas Database.

Use Cases

• Analyze derived elements from the ACC_AUX file to identify patterns in fatal motor vehicle crash classifications.
• Extract specific topical areas from the auxiliary data for targeted traffic safety research.
• Cross-reference this auxiliary file with primary FARS datasets for comprehensive accident analysis.

Strengths

• Data covers the complete 2023 calendar year for fatal motor vehicle accidents.
• Derived from the authoritative FARS dataset maintained by the NHTSA.
• Specifically designed to simplify extraction of certain data classifications and topical areas.

Limitations

• The specific columns, row count, and file size are unknown.
• As an auxiliary file, it contains derived elements and may not include all primary accident details.
• The dataset's structure and specific derived features are not described in the input.

Provenance

Source

National Highway Traffic Safety Administration (NHTSA), U.S. Department of Transportation.

Collection Method

Compiled from the primary Fatality Analysis Reporting System (FARS) datasets.

Time Range

January 1, 2023 to December 31, 2023.

Freshness

Data covers 2023; metadata was last updated in September 2025.

Geography

United States.