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Traffic Authority approves 25 mph speed limit on several Cranberry-area streets
Summary
The authority approved lowering speed limits to 25 mph on multiple streets in the Cranberry neighborhood after staff cited crash history, pedestrian infrastructure and speed data from Streetlight Insight.
The Norwalk Traffic Authority on Oct. 20 approved requests to lower posted speeds to 25 miles per hour on several streets in the Cranberry neighborhood, citing pedestrian infrastructure, school proximity and speed-sampling data.
City staff identified West Rocks Road (northern portion), Bain Street, Half Mile Road, Kensett Avenue and Field Street as the roads in the request. Staff said the southern portion of West Rocks Road already carries a 25 mph limit, and extending the 25 mph limit northward would create a consistent zone for drivers entering from Route 7 and approaching schools and parks.
Benjamin (city staff) told the authority the agency used a commercial data source, “Streetlight Insight,” to sample speeds throughout 2024 and compute average and 85th‑percentile speeds. Staff also noted a fatal, speed‑related crash on Bain Street in 2023 and said consistency of posted limits across adjacent streets would support safer driving behavior and enable future enforcement or traffic calming measures.
Commissioners raised questions about the data and whether the Streetlight Insight sampling included counts, time‑of‑day breakdowns and the specific study periods; staff said the data represent a year‑round sample for 2024 and that it provides average speeds and an 85th‑percentile metric used in engineering assessments.
After discussion, the authority voted to approve the lower speed limits. The motion carried on a voice vote.
City staff said the change will be submitted together to the state Department of Transportation so the DOT can review the multiple requests at once; staff also noted ongoing sidewalk projects and existing bike lanes on West Rocks Road.
The change is intended to improve safety near schools and parks and to make speed expectations consistent for drivers crossing from neighboring Wilton and Route 7 corridors.
