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Resident urges traffic study and calming on Sherborne Drive after data shows frequent speeding
Summary
A resident presenter urged the city to commission an independent traffic‑engineering study for Sherborne Drive after city traffic data showed high speeds and frequent speeding; he proposed lowering the neighborhood limit, adding crosswalks and stop signs, relocating a parking sign, and placing speed‑calming measures on the hill.
Resident Scott Sully, a firefighter/paramedic and civil‑engineering graduate who lives near Sherborne Drive, presented traffic data and engineering recommendations and urged the council to act before a serious crash occurs.
Sully told council that city data show roughly 2,000 vehicles travel Sherborne daily, the 85th percentile speed near the lower section is about 31 mph (exceeding the 25 mph limit), approximately 71% of drivers exceeded the posted limit in the study location, and speeds above 50 mph were recorded. He said the combination of a steep downhill approach and a blind crest creates limited sight distance for drivers entering driveways or for pedestrians crossing to access the Doe Run Nature Trail.
Sully recommended the city retain an independent traffic‑engineering consultant to evaluate speed, sight distance, intersection safety, and pedestrian access and offered several low‑cost ideas: reduce the posted neighborhood speed from 25 to 20 mph (and consider Sherborne as a pilot if the city lowers residential limits more broadly), install a marked crosswalk and stop sign with solar flashing warning lights at the blind crest, relocate a misplaced parking sign about 30 feet to improve visibility, add two stop signs in the upper section at Sherborne/Twin Ridge and Twin Ridge/Eagle Edge, and consider speed humps or tables on the hill where there are no immediately adjacent homes.
Council members commended the detailed packet, and the mayor offered to check cost options with the city engineer and budget to add a comprehensive traffic study to the road budget. No formal vote was taken; the council asked staff to estimate study cost and to follow up.
