Traffic Analysis, Modeling and Data Management

The Traffic Analysis, Modeling & Data Management program area sets policy to ensure consistent implementation of traffic analysis modeling, traffic impact analyses (TIA), and intersection control evaluations (ICE) within Wisconsin in order to provide the basis for a comprehensive analysis of needs of the existing and future highways. Policies and guidelines are set forth in the Facilities Development Manual (FDM), the TIA Guidelines, and the Traffic Engineering, Operations and Safety (TEOpS) Manual. Other functions of this BTO program area are to provide input on traffic impact analyses, access management, capacity and operability of various roadway configurations, delay impacts, traffic data requirements, traffic modeling software, and to act as a liaison to regional operations regarding traffic data management and analysis topics statewide.

Intersection Control Evaluations (ICE)

• FDM 11-25-3
• Phase II ICE User Guide
• FDM 11-25 Attachment 3.4 Phase I: ICE Memorandum template
• FDM 11-25 Attachment 3.5 Phase I: ICE Brainstorming Guide
• FDM 11-25 Attachment 3.6 Phase II: ICE Worksheet
• FDM 11-25 Attachment 3.7 ICE Submittal Checklist

Traffic Impact Analysis (TIA)/Project Traffic Studies (PTSs)

• TIA Guidelines | ITE Trip Generation Manual 11 memo
• PHF & Percent Heavy Vehicles Summary Table Example
• Commonly used ITE Land Uses
• Trip Generation for Convenience Store/Gas Station Land Use
• Trip Generation for Convenience Market/Gas Station Interim Guidance (this document has been superseded on 10/20/22)
• 12-hour Traffic Distributions
• Pass-by Trips (WisDOT acceptable rates)
• Convenience Store/Gas Station Trip Generation Study
• Mixed-Use Development Trip Generation Study
• TIA Status Maps by County
• TIA Regional Contacts

Traffic Analysis Tools

• Traffic Analysis Software: Performance Evaluation of Wisconsin Conditions, Final Report (December 19, 2018)
• WisDOT Supported Traffic Analysis Tools

Traffic Model Peer Reviews

• TEOpS 16-25
• Traffic Model Complexity - Peer Review Scoring Template

HCM Analysis

• TEOpS 16-15
• Saturation flow worksheet
• 2010 Census data
• Right Turn on Red Analysis Tool
• Signalized Intersection Capacity Data Collection: An Evaluation of Saturation Flow Rate and Right Turn on Red
• Signalized Intersection Data Collection Phase III
• Roundabout Traffic Operations Analysis Report

Microsimulation Analysis

• TEOpS 16-20
• WisDOT Vissim Vehicle Fleet Study
• Vehicle Defaults for Vissim 2020 Version 1.2 (INPX file)
• Vehicle Defaults for Vissim 2022 Version 1.2 (INPX file)
• Vehicle Defaults for Vissim 2024 Version 1.2 (INPX file)

Volume Balancing Tools

• Volume Balancing Checklist
• Balancing tool Version History (updated 5/1/23)
• Freeway Volume Balancing Tool (version 3.9.1) | Example | Example 2 | User Guide | Job Aid
• Intersection Volume Balancing Tool (version 5.8.2) updated 5/1/23| Intersection Example | Triangle Intersection Example | User Guide | Job Aid
• Intersection Schematic Templates (version 5.8.2) updated 5/1/23 | User Guide
• Excel Troubleshooting (updated 5/1/23)

Operations Certification Process

• Operations Certification Process | FDM 11-52-15 | TEOpS 16-30
• Operations Certification Summary | Guidance Document
• Operations Certification Summary Amendment | Amendment Guidance Document
• Mainline Facility Benefit-Cost Tool (updated 5/10/23)| Intersection Benefit Cost Tool (updated 6/14/23)

Related Forms

• DT1887 HCM Analysis Review Checklist
• DT2290 Traffic Model Scope
• DT2291 Microsimulation Peer Review Report

Data Management

• Data hub sorted by data type
• Turning movement count templates (updated 04/10/24)
• Manual count instructions

Best Practices

• Vissim Analysis of Diverging Diamond Interchanges

​​Contact

• ICE-related questions: DOT ICE Review (DOTICEReview@dot.wi.gov)
• All other questions: DOT Traffic Analysis & Modeling (DOTTrafficAnalysisModeling@dot.wi.gov)