% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/noise.R
\name{osm_noise_traffic_defaults}
\alias{osm_noise_traffic_defaults}
\title{Default OSM traffic assumptions for screening-level road noise}
\usage{
osm_noise_traffic_defaults()
}
\value{
A data frame with OSM highway class, speed, and hourly light/heavy
vehicle assumptions.
}
\description{
Returns the built-in lookup table used by \code{infer_osm_traffic()} when observed
traffic counts are unavailable. The defaults mirror the road-category
assumptions embedded in NoiseModelling's \code{Import_OSM.groovy}, which cites the
Good Practice Guide for Strategic Noise Mapping and the Production of
Associated Data on Noise Exposure, version 2. They should still be replaced
with local traffic counts whenever available.
}
