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Assessment Manual . SEPTEMBER 2018. FTA Report No. 0123 . PREPARED BY . Antoinette Quagliata Federal Transit Administration Office of Planning and Environment Meghan Ahearn ... 3 2.1 . PROJECT . C. LASS OF . A. CTION .....3 2.2 . PROJECT . P. LANNING AND . D. EVELOPMENT ...
3.2 Application of Noise Impact Criteria.....3-7 3.2.1 Noise-Sensitive Land Uses .....3-7 3.2.2 Noise Metrics.....3-8 3.2.3 Considerations in Applying the Noise Impact Criteria.....3-9 3.2.4 Mitigation Policy Considerations.....3-10 3.2.5 Determining the Need for Noise Mitigation.....3-11 3.3 Noise Impact Criteria for Highway/Transit Projects ...
27 Φεβ 2020 · This manual provides technical guidance for conducting noise and vibration analyses for transit projects and incorporation into FTA’s NEPA environmental review documents.
describes the land use categories defined in the FTA report, and provides noise metrics used for determining operational noise impacts. As described in Table 14-3, categories 1 and 3—which include land uses that are noise-sensitive, but where people do not sleep—require examination using the 1-hour Leq descriptor for the noisiest peak hour ...
23 Αυγ 2020 · In this context, the Chilean Environmental Assessment Service (SEA), who oversees conducting environmental impact assessment proceedings, has published in 2019 a methodological guidance for...
adopted by the Federal Transit Administration (FTA) to identify adverse community response. FTA guidelines recommend screening distances to establish the study area for a noise and vibration assessment. The areas defined by the screening distances are meant to be sufficiently large to encompass all potentially impacted locations. The se distances
Noise impact is assessed based on a combination of the existing ambient noise exposure (LRRT) and the additional noise exposure (automobile traffic) that will be caused by the proposed project. Figure E-1 provides a handy graph that can be used to add sound levels in decibels.
