Traffic Analysis Tools

The Traffic Analysis Tools Program balances efforts to develop new, improved tools in support of traffic operations analysis and efforts to facilitate the deployment and use of existing tools.

Nonbinding Contents:
Except for the statutes and regulations cited, the contents of this document do not have the force and effect of law and are not meant to bind the States or the public in any way. This document is intended only to provide information regarding existing requirements under the law or agency policies.

What’s New? (Recent Publications)

Travel Time Reliability Reference Guide (PDF)
Traffic Analysis Capability Maturity Framework Report (PDF)
Travel Time Reliability Video Series (Video Playlist)
- Travel Time Reliability Video Series (Brochure, PDF)
- Episode 1: Why Reliability Matters (Video, 9:40)
- Episode 2: Spatial and Temporal Extents (Video, 9:25)
- Episode 3: Selecting Appropriate Analysis Tool (Video, 8:25)
- Episode 4: Collecting Data for Travel Time Reliability Analysis (Video, 11:50)
- Episode 5: Conducting the Analysis (Video, 12:44)
- Episode 6: Reliability Analysis Results and Visualizations (Video, 10:06)

Key Publications

Traffic Analysis Toolbox (TAT) Volume 1: Traffic Analysis Tools Primer (PDF)
TAT Volume 2: Decision Support Methodology for Selecting Traffic Analysis Tools (PDF):
- Reliability Analysis Guidance Addendum (PDF)
- Decision Support Methodology Automated Tool (XLS)
TAT Volume 3: Guidelines for Applying Traffic Microsimulation Modeling Software (2019 Update) (PDF):
- Reliability Analysis Guidance Addendum (PDF)
- Explainer Videos:
  - Episode 1: An Analyst in Trouble (Video, 7:08)
  - Episode 2: Cluster Analysis (Video, 8:08)
  - Episode 3: Variation Envelopes (Video, 7:29)
  - Episode 4: Calibration (Video, 8:51)
  - Episode 5: Analysis (Video, 8:10)
TAT Volume 6 Definition, Interpretation, and Calculation of Traffic Analysis Tools Measures of Effectiveness (PDF):

Reliability Analysis Guidance Addendum (PDF)

Scoping and Conducting Data-Driven 21st Century Transportation System Analyses (PDF)
Guide on The Consistent Application of Traffic Analysis Tools and Methods (PDF)