Road, construction, vibration and underwater noise; dose-response

CrtnRoadNoise: UK CRTN (1988) \(L_{A10}\) with speed/heavy, gradient, distance, ground, angle-of-view and facade corrections. ConstructionNoise: FHWA RCNM Lmax and Leq. VibrationPropagation: FTA velocity-level (-30 log10(D/Dref)) and PPV ((Dref/D)^1.5) attenuation. UnderwaterPropagation: Thorp absorption with spherical/cylindrical spreading. NoiseAnnoyance: Miedema and Oudshoorn (2001) percentage highly annoyed. NoiseHealthRisk: log-linear relative risk above a threshold (WHO 2018 road traffic and ischaemic heart disease by default) and the attributable fraction.

Usage

CrtnRoadNoise(
  flow,
  speed = 75,
  heavy_pct = 0,
  gradient_pct = 0,
  distance = 10,
  receiver_height = 1.5,
  soft_ground = 0,
  angle = 180,
  facade = FALSE,
  period = "hour"
)

ConstructionNoise(lmax50, distance, usage_factor = 100)

VibrationPropagation(ref_level, distance, ref_distance = 25, kind = "lv")

UnderwaterPropagation(source_level, r, f_khz, transition_range = NULL)

NoiseAnnoyance(level, source = "road")

NoiseHealthRisk(level, rr_per_10db = 1.08, threshold = 53, population = NULL)

Arguments

flow: Hourly (or 18-hour) traffic flow.
speed: Mean speed (km/h).
heavy_pct: Percentage of heavy vehicles.
gradient_pct: Road gradient (percent).
distance: Distance(s).
receiver_height: Receiver height (m).
soft_ground: Absorbent ground fraction.
angle: Angle of view (degrees).
facade: Add the 2.5 dB facade correction.
period: "hour" or "18h".
lmax50: Lmax at 50 ft.
usage_factor: Usage factor (percent).
ref_level: Level at the reference distance.
ref_distance: Reference distance (25 ft).
kind: "lv" or "ppv".
source_level: Source level (dB re 1 uPa at 1 m).
r: Range(s) (m).
f_khz: Frequency (kHz).
transition_range: Spherical-to-cylindrical transition range.
level: Exposure level(s).
source: "aircraft", "road" or "rail".
rr_per_10db: Relative risk per 10 dB.
threshold: Exposure threshold.
population: Optional population counts per level.

Value

Numeric or list.

References

Department of Transport and Welsh Office (1988). Calculation of Road Traffic Noise. HMSO.

Miedema, H. M. E. and Oudshoorn, C. G. M. (2001). Annoyance from transportation noise. Environmental Health Perspectives 109, 409-416.

Thorp, W. H. (1967). Analytic description of the low-frequency attenuation coefficient. Journal of the Acoustical Society of America 42, 270.

Examples

CrtnRoadNoise(1000)$L10
#> [1] 72.19878
NoiseAnnoyance(60, "road")
#> [1] 10.31478
UnderwaterPropagation(200, 1000, 10)$RL
#> [1] 138.813