Traffic Management Advisory Committee

The Traffic Management Advisory Committee (TMAC) is a regional forum to discuss incident management, traffic management, and intelligent transportation systems.

TMAC is affiliated with the Iowa Statewide Multi-Discipline Safety Team (MDST) Program. More information on the Des Moines MDST is available at

TMAC meets at 10 AM on the first Wednesday of each month at the Polk County Emergency Management office. The meetings are open to the public. In the interest of public health and to assist with current coronavirus COVID-19 efforts, TMAC in-person meetings are postponed but upcoming TMAC meetings may be shifted online.

Updated 2020 Meeting Dates

  • February 19th
  • March 18th (Canceled)
  • April 1st (Canceled)
  • May 6th (Canceled)
  • June 8th (Zoom)
  • July 8th (Zoom)
  • August 5th (Zoom)
  • September 2nd (Zoom)
  • October 7th (Zoom)
  • November 4th (Zoom)

TMAC 2020 Meeting Topics

  • Best Practices
    • Emergency Vehicle Warning Best Practices
    • Distracted Driving and Countermeasures
    • Metro-wide Training Handout (Services Boook) on Available Training
  • Construction
    • Construction within the MPO and Continued Construction Updates
    • Workzone Safety Initiatives
    • Information on Planned Safety Improvements on Major Roadways
  • Incident Response and Management (Discussed in July 2020 Meeting)
    • Quick Clearance
    • Better Local Agency Access to Traffic Cameras
    • Sharing Resources for Incidents
    • Lane Closure Management Across the Metro
  • Infrastructure and Technology
    • Outdated Infrastructure
    • Connected Vehicles
    • FirstNet
  • Towing
    • Towing Company Safety
    • Towing Recovery Incentive Program (TRIP)
    • Information and Sharing with Towing Companies

Future TMAC Meeting Topics

  • Best Practices
    • Identifying Unified Command
    • Standardizing incident response practices and public education amidst COVID
  • Towing
    • Sending Pictures to Towers to Prepare the Appropriate Equipment
    • Minimizing calls to multiple towers from the same person
  • Communications and Cooperation
    • Maintaining and strengthening communications and relationships among agencies
    • Post-incident debriefings and encouraging multi-agency trainings, such as with towing

If you have an interest in roadway safety and efficiency or have questions about the group, please call or email Zhi Chen at 515-334-0075 or   



Supplemental Items

November 2020PresentationGovernor’s Traffic Safety Bureau (GTSB) November 2020 Report
Des Moines Integrated Corridor Management (ICM) Freeway Solutions Group Invitation
October 2020PresentationGovernor’s Traffic Safety Bureau (GTSB) October 2020 Report
September 2020PresentationGovernor’s Traffic Safety Bureau (GTSB) September 2020 Report
Des Moines Area Regional Intelligent Transportation Systems (ITS) Architecture Update August 2009
August 2020PresentationGovernor’s Traffic Safety Bureau (GTSB) August 2020 Report (PDF)
Governor’s Traffic Safety Bureau (GTSB) August 2020 Report (PPT)
July 2020PresentationDiscussion Summaries
Governor’s Traffic Safety Bureau (GTSB) July 2020 Report
June 2020Des Moines ICM Presentation
FirstNet Presentation
Governor’s Traffic Safety Bureau (GTSB) June 2020 Report
Des Moines ICM – Active Traffic Management Cutsheets
Des Moines ICM – Advanced Freeway Management Strategies
May 2020Governor’s Traffic Safety Bureau (GTSB) May 2020 Report
April 2020Governor’s Traffic Safety Bureau (GTSB) April 2020 Report
February 2020PresentationGovernor’s Traffic Safety Bureau (GTSB) February/March 2020 Report
MPO 2016-2020 Safety Targets Report
December 2019Presentation 
November 2019PresentationRevised Model Bicycle Ordinance 10172019
October 2019PresentationMidwest Traffic Incident Management Safety Summit Materials:
Move Over Card
ICAT Business Card
Heavy Truck Crash Tool
Motorcycle Crash Tool
4 to 3 Lane Conversion Flyer
Commercial Press Cannabis Impairment Quick Assessment
High Tension Cable Barrier Untangled
Gibraltar Cable Barrier Systems Presentation
Steer It Clear it
Multidisciplinary Safety Team (MDST) Guide
TIM Training Program Overview
TIM Field Guide
TIM Responder Training Announcement – Template
TIM Responder Training Certificate – Template
September 2019PresentationMPO Draft Model Bicycle Ordinance
Traffic Incident Management Field Guide
Traffic Incident Management Pocket Guide
February 2019MinutesIADOT D1 2019 Construction
October 2018Minutes 
February 2018Minutes 
August 2017Minutes 
May 2017MinutesStatewide Lane Reconfiguration Analysis
February 2017Minutes2017 D1 Projects
November 2016Minutes 
August 2016MinutesDes Moines Triathlon – Street Closures
Fahrrad Bike Ride – Route Map
Des Moines Marathon – Route Map
June 2016Minutes 
February 2016Minutes2016 D1 Projects
FY2016-2019 TCIP
 November 2015MinutesCMP Proposed Metrics and Threshholds


Planning to attend a meeting?

Anyone planning to attend MPO meetings who may need auxiliary aids or services should call the Des Moines Area MPO office at 515-334-0075. Please call at least 48 hours in advance so that appropriate arrangements can be made.