Noise Round 2 Rail (Night Time)

This is a polygon Dataset of the strategic noise mapping of rail, which were identified as those rail exceeding the flow threshold of 30,000 vehicle Passages per year, in the form of noise contours for the Lnight (night) period for Dublin and Cork agglomerations and the major roads outside of the agglomerations.
The Db Value represents the average decibel value during the night time.

本数据集为铁路战略噪声制图的多边形数据集，筛选条件为年车辆通行量超过30000次的铁路线路，涵盖都柏林（Dublin）、科克（Cork）都市区及其外围主要道路的夜间（Lnight）时段噪声等值线数据。其中Db值代表夜间时段的平均分贝值。