A study of usability noise prediction model by using linear regression analysis for KTMB commuter between Shah Alam to Bukit Badak route

Hassan, Noraini (2016) A study of usability noise prediction model by using linear regression analysis for KTMB commuter between Shah Alam to Bukit Badak route. Masters thesis, Universiti Tun Hussein Onn Malaysia.

[img]PDF
870Kb

Abstract

Train operational process producing high level of noise especially from the rail, wheel and its body which affect the nearer residential. High level of noise emitted by the train might lead to annoyance and even cause severe damage to residents live near the train route. KTMB received several complaints from the resident about the noise pollution came from train operation. Currently, in-situ field measurement procedure is done in order to monitor and measure noise level of train. The procedure requires some cost, time, man power and precise equipment which sometime might become constrain in order to get a quick data. In most country, prediction model is used in assessment of existing or envisaged changes in traffic noise condition. The development of an efficient noise prediction model can be used for future railway development. A study is conducted to identify the emission of noise by KTMB commuter at distance of 15, 20 and 25m away from track centre. Sixty samples of actual noise level data were collected through field measurement and analysed to develop noise prediction model for KTMB commuter. Based on noise LA,max, speed of train and distance between apparatus and centre of trackway measured and collected between Shah Alam to Bukit Badak station, the highest LA,max noise emitted by KTMB comuter was at level of 78.4dB. Data were analysed by using linear regression statistical Minitab software and prediction model was develop as LA,max = 52.92 - 0.2564 distance + 0.6406 speed. The significant and usability of model were proved by the value of R2=0.9369 (93.699%). The result of predicted noise level calculated by using prediction model then was compared to the actual and the different were lies between -0.5 to 1.8 dB from the actual reading on site.

Item Type:Thesis (Masters)
Subjects:T Technology > TD Environmental technology. Sanitary engineering > TD891-894 Noise and its control
ID Code:8811
Deposited By:Mr. Mohammad Shaifulrip Ithnin
Deposited On:06 Feb 2017 15:04
Last Modified:06 Feb 2017 15:04

Repository Staff Only: item control page