DDSA Crash Tree Diagram
- Posted: Thursday August 15th, 2019
- Publishing Organization: USDOT FHWA Office of Safety
- Topic: Enforcement, Engineering
- Sub-Topic: Crash Records, Safety Data, Systemic Safety
Description:
The DDSA Crash Tree Tool allows users to generate crash tree diagrams based on the NHTSA Fatality Analysis Reporting System (FARS) or other crash datasets. Crash tree diagrams can be used as part of the systemic safety analysis process to help you identify and select the facility types where the focus crash types most frequently occur. The crash tree can have a number of different formats, depending on agency capabilities and data availability. The Systemic Safety Project Selection Tool includes additional information about the systemic safety analysis process, including examples of crash tree diagrams.
*Please note that the two YouTube videos are for an older version of this Crash Tree Tool and may not line up exactly; however, they are a useful reference so still provided here.
- Download: Crash Tree Maker View .ZIP (285.32K)
- Download: Sample Crash Tree Diagram View .PDF (133.08K)
- Download: Using the Fatality Analysis Reporting System (FARS) for Systemic Analysis View .PDF (470.75K)
- Download: DDSA Crash Tree Tool Guide View .PDF (285.77K)
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Watch Video: DDSA Loading FARS Data
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Watch Video: DDSA Loading State Data