Choices on design speed, cross section, and intersection control directly shape whether people live or die.
At this year’s MTC&E conference, the session Highway 47: Putting Safety and Community First told the story of how Highway 47 was framed as a clear reminder that engineering is fundamentally a public safety practice.
This session was presented by Alliant’s Mike Kondziolka and Nick Turner.
Designing to Save Lives
The team grounded the discussion in the corridor’s safety crisis: the 6.5‑mile Highway 47 study area between Minneapolis and Blaine led the state in pedestrian fatalities, with 14 fatal pedestrian crashes documented over the last decade, including a concentrated cluster within a 1.5‑mile segment between Osborne Road and University Avenue (CSAH 3), where more than one person dies every year on average. From there, the session emphasized how the project deviated from common corridor evaluations by shifting the question from “How can we get traffic through the corridor quickest?” to “How do we design this corridor to save lives?”
That shift entailed a people-centered, evidence-based approach. Crash patterns and severe outcomes were examined, and the project team worked closely with law enforcement to understand the real-world conditions behind tragedies on the ground. The focus was to identify why these severe crashes were occurring. The key safety insight presented was that severe crashes were frequently tied to the combination of high vehicle speeds — comparable to freeway conditions — and risky crossing behaviors, creating an environment that was unforgiving for people walking and unsafe for drivers as well. Engineering then became the mechanism for turning that diagnosis into actionable countermeasures. The session highlighted concepts that included reducing lanes, lowering speeds, exploring shorter signal cycle lengths, adding grade-separated pedestrian crossings, and advancing roundabout-based designs paired with pedestrian-focused treatments such as flashing beacons.
The Opportunity
The recap centered on the professional challenge that often defines safety work, balancing competing visions for the corridor. While some stakeholders preferred maintaining Highway 47 as a high-speed expressway, the team showed how Safe System principles supported design speeds and corridor strategies that could dramatically reduce fatal and serious injury outcomes without degrading travel times. Ultimately, the session showed that a shared foundation of data-based decision making, Safe System framing, and community engagement can shift corridor decisions toward life-saving design while remaining grounded in the realities of funding and delivery.