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Collision Data Analysis Tool - CDAT

The Collision Data Analysis Tool (CDAT) is a free FileMaker Pro application developed by Traffic Services. It runs on any computer with Windows 7, Vista, Windows XP, and Windows 2000. It is not necessary to have Filemaker Pro. Local agencies can use it to analyze traffic collision data obtained from WSDOT's Collision Data Office. Follow these steps to download, set up, and use CDAT.

Step 1. Download the CDAT program onto your computer.

For Windows 7, Vista, XP and 2000:

Self Extracting Zip File (exe 27 mb) - Recommended. Click on the link. Then click on "run". This creates a folder C:\CDAT. Click on "unzip".


WinZip File (zip 27 mb). Requires WinZip application. Click on the link. Then click on "open". Choose "select all" from the "Actions" pull-down menu. Click on the "Extract" icon. Select a location on your computer where you want to extract the data.

Step 2. Obtain State Collision Data

Contact the Collision Data and Analysis System Administrator at 360-570-2509 from the WSDOT Collision Data Office for assistance to set up an account to receive traffic collision data.

Step 3. Run CDAT

Run the CDAT by double-clicking the CDAT.exe file in the C:\CDAT directory. Import your Collision Data from the WSDOT ftp site.

Step 4. Analyze Collision Data

Analyze your collision data.

For Questions

Please contact our Traffic Services Manager for general questions. Contact our IT Systems Specialist if you encounter problems installing or running CDAT.