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Publication Number: FHWA-HRT-05-048
Date: April 2005

Safety Evaluation of Red-Light Cameras

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Figure 1. Project Workflow Flowchart

This figure shows a flowchart broken into to Phases. The first phase is documented in a column down the left hand side of the page, while the second phase is documented in a column down the right hand side of the page.

Phase I. This first column on the left hand side begins with its first block of information which reads, Collect Background Information From Literature and Other Sources. An arrow leads from this block of information to the next.

The second block of information reads, Establish Study Goals with FHWA Panel. An arrow leads from this block of information to the next.

The third block of information reads, Interview Potential Jurisdictions. An arrow leads from this block of information to the next.

The fourth block of information reads, Choose Study Jurisdictions. An arrow leads from this block of information to the next.

The fifth block of information reads, Define Study Methodology for Crash Frequency-Based Study. An arrow leads from this block of information to the next.

The sixth and final block of information in this column reads, Define Study Methodology for economic Cost Study. An arrow leads from this block of information at the bottom of the Phase I column back up to the first block of information in the Phase II column.

Phase II. The first block of information in the Phase II column reads, Collect and Code Data from Jurisdictions. An arrow leads from this block of information to the next.

The second block of information reads, Develop New Crash Cost Estimators. An arrow leads from this block of information to the next.

The third block of information reads, Analyze Data. An arrow leads from this block of information to the next.

The fourth and final block of information in the Phase II column reads, Prepare reports.

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