Traffic: Analysis

There are no Standard Plans or Drawings that apply to this design topic.

There are no contract specifications that apply to this design topic.

WSDOT resources

WSDOT Traffic Analysis Guidebook (PDF 151KB)

WSDOT Multimodal Transportation Impact Analysis Guidelines (PDF 305KB)

WSDOT Transportation Data

WSDOT GIS

WSDOT simulation protocols and policies

WSDOT SIDRA Policy and Settings (PDF 292KB)

WSDOT Synchro and SimTraffic Protocol (PDF 513KB)

WSDOT VISSIM Protocol

• Base Protocol (PDF 2MB)
• Appendix A - Acronyms (PDF 376KB)
• Appendix B - Terminology (PDF 376KB)
• Appendix C - Scoping Checklist (XLS 20KB)
• Appendix D - Seeding Period FHWA Traffic Analysis Toolbox Volume III (PDF 78KB)
• Appendix E - Example Model Development Flow Chart (PDF 343KB)
• Appendix F - Example Speed Plots (PDF 45KB)
• Appendix G - Ramp Meter Signal Timing Example (PDF 321KB)
• Appendix H - Signal Timing Checklist (XLS 29KB)
• Appendix I - Confidence and Calibration Report (PDF 99KB)
• Appendix J - 95th Percentile Queue Example (PDF 102KB)
• Appendix K - Sample Report Formatting (PDF 182KB)

For a VISSIM Confidence Report, Travel Time or copy of NorthAmericanDefault.inp for VISSIM Version 5.4 or Version 7.0, please contact this office.

Additional protocols, procedures & resources

Oregon (ODOT) Analysis Procedures Manual, Protocol for VISSIM Simulation (PDF 3.9MB)

NCHRP Report 765: Analytical Travel Forecasting Approaches

Federal Highway Administration (FHWA) Traffic Analysis Toolbox

• Index (Volumes I - XIV and supporting documents)
• Volume 1: Traffic Analysis Tools Primer
• Volume 2: Decision Support Methodology for Selecting Traffic Analysis Tools
• Volume 3: Guidelines for Applying Traffic Microsimulation Modeling Software

Analysis software

Traffic analysis software helps planners and engineers analyze likely traffic operations impacts due to proposed changes in any of the following conditions: system or network, land use, development, background traffic growth, population or modal shifts.

PTV-VISSIM

SIDRA

Synchro

TRANSYT-7F

TSIS-CORSIM

Doug McClanahan
State Traffic Analysis Engineer
Doug.McClanahan@wsdot.wa.gov
360-705-7984