Federal road profile model generation based on road scanner data

Buhari, Rosnawati and Md Rohani, Munzilah and Puteh, Saifullizam and Seblan, Azali Akhbar (2014) Federal road profile model generation based on road scanner data. In: InCIEC 2014 International Civil and Infrastructure Engineering Conference, 28 September – 1 October 2014, Kota Kinabalu, Sabah, Malaysia.

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Abstract

In Malaysia, the application of Mechanistic-Empirical approach in pavement design guide is still in early stage of introduction and many more researches able to improve it. One of the task needs is generating road profile model to evaluate the dynamic axle loads from vehicles. Therefore, this study aims to generate a few models of road profiles based on the real road profile data called reference road profiles model using mathematical method. The reference road profiles data are a measurement of new paved federal road in Malaysia. A profile of two sections of roads (300 meters length each) measured by road scanner were determined from Malaysia Public Work Institute (IKRAM).The Profile Viewing and Analysis software (ProVAL) was used to filter unwanted wavelength, visualize the measured road profile data and obtain road profile International Roughness Index (IRI). While Matrix Laboratory software (MATLAB) was used to generate road profile based on Dodds and Robson Power Spectral Density (PSD) approximation equation. The calibration between generated and reference road profiles were examined by correlation coefficient value. From the results, all generated road profiles that have correlation coefficient range between -1<ρ<-0.7 or 0.7<ρ<1, gives different IRI values with the reference road profile. However, the differences in IRI values are small or less than 5% and it is acceptable. Therefore, all 56 models of generated road profiles are applicable for long term pavement performance. A road profiles model that produce same roughness as the measured profile is mostly applicable for long term pavement performance.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:road profiles; international roughness index; profile viewing and analysis software (ProVal); power spectral density
Subjects:T Technology > TE Highway engineering. Roads and pavements
Divisions:Faculty of Civil and Environmental Engineering > Department of Infrastructure and Geomatic Engineering
ID Code:6174
Deposited By:Normajihan Abd. Rahman
Deposited On:08 Dec 2014 14:41
Last Modified:08 Dec 2014 14:41

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