The Canton Planning and Zoning Commission on June 17 heard a detailed staff presentation on proposed changes to the town’s traffic and safety impact analysis rules and agreed to continue the public hearing to the July 15 meeting to allow further review of referral comments.
Staff said the commission‑sponsored amendment clarifies when a traffic and safety impact analysis is required and expands the town’s focus beyond motor‑vehicle level‑of‑service to consider effects on all roadway users. The draft preserves review for nonresidential developments with 10,000 square feet or more of gross floor area, adds any class restaurant with a drive‑through as a trigger, and proposes a new residential threshold for proposed developments containing 100 or more dwelling units. The amendment also rewrites existing intersection language to read that a development that would add 100 or more vehicle trips in a peak hour to any intersection must be considered for analysis.
“Historically, traffic review has focused largely on motor‑vehicle movement,” staff said, explaining the draft’s intent to build a safety‑impact analysis into the regulations so reviews consider pedestrians, people with disabilities and other roadway users. Staff also proposed language allowing the commission to challenge applicants’ growth‑factor projections and to require applicants to fund independent review by the commission’s expert when warranted.
Commissioners discussed the level‑of‑service measure (grades A–F), the practical meaning of LOS D, queuing at unsignalized intersections, and how mitigation measures such as lane widening can worsen safety and speed. Several commissioners asked staff to provide comparisons and more objective metrics in the next packet. Referral comments from the state transportation review arrived late; staff circulated a June 16 revision incorporating some of the agency’s suggestions but commissioners asked for additional time to examine those comments and BHP (consultant) materials.
No members of the public spoke. After the discussion, the commission voted to continue the public hearing on file 156 / application 2567 to the July 15, 2026 meeting to allow staff and commissioners time to review the revised memo and referral responses.
The continued hearing will give staff time to provide additional detail on triggers, the role of queuing analysis for non‑signal intersections, and options for objective metrics to guide mitigation.