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Work-zone flagger in a construction zone with traffic passing nearby

Smart warning systems: Shielding flaggers on the front lines

Work-zone flaggers are the most vulnerable transportation workers: 41 out of every 100,000 are killed annually in the U.S. To address this stark reality, a UMN research project developed a portable warning system to intercept speeding drivers before they reach a work zone.

Read more about the study 

Equpiment compacting dirt around a newly installed culvert
Installation practices could minimize culvert joint separation
Raphael Stern sits at a table, talking to a bicyclist standing nearby
Transportation engineers help update standards for bike paths
Hundreds of Open Streets attendees stopped by CTS's booth on foot, by bicycle, and via mobility devices.
Hundreds engage with CTS at Minneapolis Open Streets event
More news

CTS in the Media

  • Opinion: Changes in Silver Bay reflect health care challenges facing all of rural Minnesota
  • Researchers ponder mysterious buried wall holding up St. Anthony Falls
  • How Minnesota aims to become a global hub for sustainable aviation fuel
  • Preston to Forestville bike trail moves one step closer to reality
  • Duluth riders invited to ‘Bike for Science’ event collecting safety data for MnDOT
More CTS in the media

Featured Events

July 30, 2026 Virtual
Minnesota TZD Traffic Safety Hotdish: Everything E-Bikes
11:00am - 12:15pm
August 3, 2026 Virtual
CTS Webinar: Mobility, Access, and Transportation Insecurity Program Round 3 RFP
3:00pm - 4:00pm
August 13, 2026 Virtual
CTS Webinar: Mobility, Access, and Transportation Insecurity Program Round 3 RFP
12:00pm - 1:00pm
More events
MnCAV automated vehicle driving on a paved road

Research

Browse all transportation-related research projects at the University of Minnesota. 

CTS at 40: Driving Innovation, Accelerating Discovery, Fueling Talent

CTS at 40

Learn about CTS's 2026 annual theme, "CTS at 40: Driving Innovation, Accelerating Discovery, Fueling Talent."

2024 conference attendees watching a keynote presentation

Annual Conference

Save the date for the 2026 CTS Transportation Research Conference! The event is set for November 5 in Minneapolis.

Interested in CTS's latest news and events?

Sign up for our Catalyst newsletter and event announcements

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Phone: 612-626-1077
Email: [email protected]

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  • Research
    • Search Research
    • Featured Research
      • CTS at 40
      • Applied Research in Transportation Program
      • Unpacking Freight
      • Archives
    • Library Services
    • For CTS Researchers
  • Events & Training
    • Events Calendar
    • Research Conference
    • Seminars and Webinars
    • Freight and Logistics Symposium
    • Professional Ethics Training
    • Technical and Customized Training
    • Past Events
  • Education
    • Student Awards
    • Internship Programs
    • Scholarships & Fellowships
    • Student Organizations
    • K-12 Educational Activities
  • News & Publications
    • CTS News (Catalyst)
    • CTS in the Media
    • Annual Reports and Performance Measures
    • Briefs and Summaries
    • Journal of Transport and Land Use
    • Subscribe
  • Programs & People
    • Programs
    • Staff
    • Faculty & Research Scholars
    • Executive Committee
    • Councils
  • About
    • About CTS
    • Location & Contact Information
    • Job Openings and Vendor Opportunities
    • CTS Awards
    • Equity Statement
    • Land Acknowledgement