O'Fallon explains traffic-calming policy, petition process and voting thresholds

Jan 23, 2026

Assistant Director Todd Arch reviewed the city's traffic-calming policy (adopted 2008, revised 2023), explained the petition and study process, and described an 80-point qualification threshold and a 65%-of-returned-ballots neighborhood approval requirement.

The full story

Todd Arch, assistant director of engineering, outlined how the City of O'Fallon evaluates and installs physical traffic-calming measures and what residents should expect from the petition-to-installation process.

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