CNEL

Community Noise Equivalent Level (CNEL) is a weighted average of noise level over time.{{cite web|url=https://planning.lacity.org/eir/Palazzo/text/noise.pdf|title=NOISE - Los Angeles Department of City Planning}} It is used to compare the noisiness of neighborhoods. CNEL is frequently used in regulations of airport noise impact on the surrounding community.{{cite web|title=CNEL (Community Noise Equivalent Level)|url=http://www.wacaz.com/services/airport-development-analysis/cnel-community-noise-equivalent-level/}}{{Cite web |title=Community Response to Noise |url=https://www.faa.gov/regulations_policies/policy_guidance/noise/community |url-status=live |archive-url=https://web.archive.org/web/20220705112820/https://www.faa.gov/regulations_policies/policy_guidance/noise/community |archive-date=2022-07-05 |website=Federal Aviation Administration}}

A CNEL exceeding 65db is generally considered unacceptable for a residential neighborhood.