Study on Emission Measurement of Vehicle on Road Based on Binomial Logit Model

概要

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This research attempts to evaluate emission measurement of on road vehicle. In this regard, the research develops failure probability model of vehicle emission test for passenger car which utilize binomial logit model. The model focuses on failure of CO and HC emission test for gasoline cars category and Opacity emission test for diesel-fuel cars category as dependent variables, while vehicle age, engine size, brand and type of the cars as independent variables. In order to implement the model, a survey to measure the vehicle emission was done to the two categories of passenger cars on road. Other information related to the characteristics of the cars sampling was collected in the survey. The survey was done at two main roads in Makassar City, one of the large cities in Indonesia. According to calculation result, the model gave good appearance. In further, the results showed that vehicle age became significant variable to determine the failure probability of vehicle emission test for CO and HC emission of gasoline cars category. As well as, engine size gave significant contribution to the failure of Opacity emission test for diesel-fuel cars category. The model provides good expectation to be tested in others cases and to develop failure model of vehicle emission test on macro scale in further studies.