الفهرس 
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Abstract
Railway lines inside inhabited areas cause a lot of noise and
vibration that make it environmentally a big source of pollution.
Egypt was one of the first countries that used railways and have a
lot of lines connected subsidiaries distance and most of cities by Cairo
through the inhabited zones.
A railway system is of necessity placed near population centers
and often causes significant noise and vibration at nearby residences and
other sensitive types of land use. Due to unplanned homes very close to
the railway lines, noise and vibration are very important elements of the
environmental impact in this respect.
Extensive measurements have been performed over the selected
area of Sharabia near to the main Cairo Station due to, only building is
four meter away from the railway line. The railway line in this area
consists of five tracks (double track up & down towards Alexandria,
double track up & down towards Monouf and a single track towards the
East)
The statistical evaluation of measured sound and vibration
emission from rail vehicles has been used to produce a mathematical
model based on empirical formula.
Validations of the model were preformed by measuring a real
input data and predict Sound Pressure Level and Vibration Level using
the empirical mathematical models and compare the results.