English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Transportation noise is a main source of noise pollution. It is assumed that it consists of recognizable noise events which come from moving aircrafts, trains and boats. The noise of an isolated sound event is assessed by the sound exposure level, $L_{AE}$. Much legislation and many regulations and guidelines employ the A-weighted time-average sound level, $L_{Aeq,T}$, with the time interval $T$ of one hour or longer. $L_{AE}$ measurements enable an approximation of $L_{Aeq,T}$. The key point is the uncertainty of this approximation. It has been shown that an increase in the number of $L_{AE}$ categories brings about a decrease in uncertainty. For illustrative purposes, $L_{AE}$ measurements of aircrafts taking off and landing were carried out.

The Uncertainty of Noise Composed of Separate Sound Events