Trinidad Planning Commission pushes for clearer noise data, debates labeling of ‘tourist’ noise in draft noise element

The Trinidad Planning Commission on Wednesday, Sept. 17 discussed revisions to the draft noise element of the city’s safety element, pressing staff for better baseline data and clearer categories for sources of sound.

Commissioners and attendees said the current noise readings are too limited to support numeric standards or an ordinance and urged staff to recast some categories (for example, reclassifying some “tourist” noise as vehicle or recreation noise) and to clarify when state or Coastal Commission rules would apply. Trevor, planning staff, told the commission “it’s not gonna be part of the local coastal program,” and said the noise section was included for completeness but required more work before being used to set local policy.

The discussion matters because the noise element informs Coastal Development Permit (CDP) review, building insulation requirements for funded housing and future noise regulation. Commissioners noted the element also feeds subsequent ordinances the city could adopt to manage daytime nuisances, construction noise and special events.

Most commissioners and commenters focused on three core concerns: the quality and timing of the sound measurements in the packet, the metrics the draft uses to judge compatibility, and the draft’s treatment of certain sources.

On data quality, multiple participants said the existing readings are an incomplete snapshot. The packet notes measurements taken on two short occasions (reported in the meeting as roughly 04:59–05:43 p.m. and 06:22–06:47 p.m.), and several commissioners called that “not representative” for a community with widely varying conditions. One commissioner said 24‑hour monitoring is often needed for reliable averages; another suggested either removing the table until there is better data or adding a clear map and time/context descriptions for each sample point.

Commissioners discussed the technical metrics cited in the draft: A-weighted decibels (dBA) and CNEL-style daily averages were mentioned repeatedly, along with compatibility thresholds used in model documents (examples cited in the meeting included daytime compatibility up to about 65 dB for outdoor sports, conditional acceptance up to 80 dB, and a frequently referenced interior target near 45 dB for housing). Commissioners also repeated points from the draft: a 3-dB change is often described as a just-noticeable difference and 5 dB as a commonly used threshold for a perceptible change in community response.

Several commissioners urged recategorizing “tourist” noise. Multiple speakers said most tourist-related complaints are vehicle-related (cars traveling to and from the coast or short-term rentals), not a distinct class of noise, and suggested the document label those sources by mechanism — e.g., “vehicle traffic” or “recreation activity” — rather than by visitor type. Commissioners contrasted that expected community noise (school playgrounds, public recreation and routine events) with industrial or avoidable commercial nuisances that might warrant enforcement.

The commission also discussed practical enforcement issues: a public comment flagged California Vehicle Code parking rules, and staff and commissioners noted red-curb painting can require a Coastal Development Permit in some situations. Staff recommended beginning the enforcement/curb‑marking conversation with the interim city manager and the city engineer.

No ordinance was adopted or voted on. Commissioners asked staff to refine the element, add context about sampling methods and locations, reconsider the categorization of noise sources (including treating many tourist activities as recreation or vehicle noise), and indicate when a site‑specific noise study would be required for development review.

"The data in this packet is informative but not representative," one commissioner said during the discussion. In public comment, Paula, a resident, thanked the commission for the work and noted that outlying areas and the spheres of influence include different noise sources such as chainsaws and wood lots that the plan should consider.

Staff said it would rework the element and return with a draft that either includes a more robust sampling plan or removes the limited table and instead explains its limitations and proposed next steps.