Jupiter Mom Who Rallied Her Neighborhood Gets Results — Palm Beach County Adding Protected Left-Turn Arrows on Military Trail

A Jupiter mother's campaign to make Military Trail safer for teen drivers is paying off — and faster than most people expected.

Palm Beach County's Engineering Department has confirmed it will install protected left-turn green arrows at two Military Trail intersections: at University Boulevard and at Fredrick Small Road. The signals are expected to be fully operational within three to four weeks.

The push came from Susan Tinsley, who began advocating for the change after her husband witnessed the aftermath of a crash involving teenagers at one of the intersections. She went public through WPTV and urged residents to contact county officials about the dangers of "yield-on-green" left turns at intersections with obstructed sightlines.

The community responded. And, notably, the county acted even though neither intersection met the standard threshold of five left-turn-related crashes within a 12-month period typically required for signal upgrades.

"The community was able to get a change — the county heard the community," Tinsley told WPTV. "Your voice is heard, and as a group, we are very powerful."

For Tinsley's teenage daughter Sawyer, who drives that stretch of Military Trail regularly, the news is immediate relief.

"It just makes me feel much safer already knowing that those lights will be changed," Sawyer said. "Knowing that I won't have to avoid them — there'll just be an arrow and it's simple.

I don't have to worry about timing it perfectly."

Sawyer said the experience taught her something beyond traffic safety: "You don't need to have all the resources in the world. You just need to know how you can use them — reaching out to news outlets and reaching out to social media — to get things done."

Her mother hopes the outcome encourages other residents to speak up when they see something dangerous in their neighborhood. "I think if people want to help, people want to create change — sometimes they just need, here's what to do," Tinsley said. "It gives me a ton of hope for our future as a community