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Development and application of the Weibull distribution-based vehiclesurvivorship models for a metropolis of a developing country |
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| รหัสดีโอไอ | |
| Creator | 1. Monorom Rith 2. Alexis M. Fillone 3. Jose Bienvenido Manuel Biona |
| Title | Development and application of the Weibull distribution-based vehiclesurvivorship models for a metropolis of a developing country |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2563 |
| Journal Title | Songklanakarin Journal of Science and Technology |
| Journal Vol. | 42 |
| Journal No. | 6 |
| Page no. | 1233-1238 |
| Keyword | Weibull distribution, vehicle survival rate, scrapped vehicles, vehicle sales, vehicle stocks, Metro Manila |
| URL Website | https://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | Vehicle survival rate models have been extensively built in developed countries and China in view of the availability ofvehicle scrappage data, but many developing countries do not have those data. This paper intends to develop Weibulldistribution-based models of vehicle survivorship for Metro Manila, Philippines, without using the vehicle scrappage data. Theproposed computation procedure can capture the dynamics of average vehicle lifespan. Light-duty passenger vehicles areclassified into two main categories: car (sedan, hatchback) and utility vehicle (SUV, van, minivan, pickup, wagon, Jeepney). Theresults highlighted that the average lifespan of the car decreased from 23.23 years in 2007 to 15.22 years in 2016, whereas theaverage lifespan of the UV was constant and equal to 14.18 years. Also, the developed models were applied to project the vehiclestocks, scrapped vehicles, and vehicle sales based on two designed scenarios: historical trend and limitation of the vehicle stocks. |
