New Project: Using Apps to Notify the Public of Local Road and Bridge Closures

The traveling public increasingly relies on navigation systems to get to their destinations. Currently, there is not a system, tool, or process being used by cities and counties in Minnesota to report road or bridge closures for use by transportation agencies to display to the traveling public or for use by third-party mapping/navigation companies (e.g., Waze, TomTom, HERE Technologies, Google Maps) to provide to the public.

This project will document up to three best practices for manual local road closure reporting, describe an approach that the Local Road Research Board could use to develop or implement an existing user-friendly road closure reporting system, and provide guidance on how to report closures to third-party mapping/navigation companies.


MnDOT already operates and maintains a statewide traveler information reporting system known as CARS. This project will review and summarize the options and approach for adapting it for local road entry. As part of the study, researchers will:

  • Develop best practices for reporting systems by documenting four examples used in other states for establishing and operating tools to report local road closures.
  • Define three options for how to make a user-friendly system for local Minnesota agencies using the outcomes of the best practices summary.
  • Prepare users guide for entering information into existing mapping tools that will assist in understanding the process to submit road closures and mapping updates to established mapping/navigation providers.

Project Details

  • Estimated Start Date: 12/19/2022
  • Estimated Completion Date: 03/31/2024
  • Funding: Local Road Research Board
  • Principal Investigator: Dean Deeter
  • Technical Liaison:  Perry Clark

Details of the research study work plan and timeline are subject to change.

To receive email updates about this project, visit the Local Road Research Board to subscribe.

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