Clean Air Initiative: Better Air Quality Workshop - Statistical Modeling of Exhaust Emission from Mobile Sources using P.E.T.C. and M.V.I.S. Data in the Philippines (PO.Lacuarin)

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BAQ 2003 > Presentations > Poster sessions

Statistical Modeling of Exhaust Emission from Mobile Sources using P.E.T.C. and M.V.I.S. Data in the Philippines

Joselito R. Lacuarin, M.S. Civil Engineering major in Transportation Engineering, Civil Engineering Department, College of Engineering; and Dr. Ricardo G. Sigua, Associate Professor, Department of Civil Engineering, University of the Philippines

Statistical Modeling of Exhaust Emission from Mobile Sources using P.E.T.C. and M.V.I.S. Data in the Philippines
[.doc, 100.3Kb]

Abstract

Known as the Republic Act 8749 (Philippine Clean Air Act), the law mandates the Department of Trade and Industry (DTI) and the Department of Transportation and Communication (DOTC) with the Land Transportation Office (LTO) to implement a national motor vehicle inspection and maintenance program to make sure vehicles comply with set emission standards starting by 2003. The I/M programs are implemented with joint partnership of government and private agencies setting up Private Emission Testing Centers (PETC) to conduct the emission tests.

To this effect, all in-use vehicles are required to pass the emission test given by any accredited and authorized PETC and are given a Certificate of Emission Compliance (CEC) and Certificate of Conformity for newly assembled local or imported vehicles. This means that the renewal of annual vehicle registration at the LTO will only be possible upon presentation of such certificate.

Despite the use of EURO I stationary idle test procedure in testing centers does not accurately identify the gross polluting vehicles on the road, the effectiveness of the PETC and MVIS in reducing the vehicle emission remains criticized. This study seeks to determine the relationship between vehicle characteristics (such as vehicle age, manufacturer, engine displacement, number of cylinders, and fuel type) and exhaust emission using data collected in IT-based Private Emission Testing Centers and Land Transportation Office Motor Vehicle Inspection System (LTO-MVIS) all over the Philippines. It also aims to determine the effectiveness of PETC and MVIS in reducing vehicle emissions. Carbon Monoxide; Hydrocarbon, and Opacity/Particulate Matter emissions were modeled based on vehicle age, manufacturer, engine displacement, number of cylinders, fuel type.