| บทคัดย่อ(English) |
Because of their unique shape and appropriateness for city transportation use, LPG-engine three wheel vehicles, which also called "TUK TUK", have become popular, especially among tourists. These vehicles operate using 2 stroke combustion system which produces air and noise pollution. NECIEC has developed electric three wheel vehicles which retain the appearance of the conventional three wheel vehicles. The obgective of this study is to make a comparison between LPG-engine and electric three wheel vehicles in terms of 1) cost and financial benefit 2) investment returns considering total production costs and income from rental of LPG vehicles and the operation of electric vehicles as a service provider 3) Health costs associated with drivinsg either LPG-engine or electric three wheel vehicles. The results Eom this study will be used as an information source for decision maldng and planing future policy. There were 4 groups in this study. The first group consisted of LPG"engine and electric three wheel vehicle producers. Ihe second group consisted of LPG-engine and electric three wheel vehicle transportation service providers. These first 2 groups were interviewed and selected based on purposive sampling technique. In order to conduct cost-benefit analysis on these first two groups a 15% reduction rate and 10 year project duration were used.The third group contained 2 new LPG engine and 2 new electric three wheel vehicles which were purposively chosen in order to compare the pollution release Eom those 2 types of three wheel vehicles. For pollution release comparison, t-test was used. The last group consisted of LPG engine and electric three wheel vehicle drivers. Chi-square test was used to examine ie relationship between disease and symptoms associated with driving three wheel vehicle. in order to analyze health cost. The result from this study has shows that production of electric three wheel vehicles offiers a higher return than production of LPG-engine vehicles, based on a production run of 50 vehicles. Rental of LPG vehic,les offers a higher return than operating electric vehicles as a sentice provider, sirnilarly based on a fleet of 50 vehicles. LPG engine three wheel vehicles release significantly more hydrocarbon gas and noise than e}ectric engine vehicles (p < 0.05). The symptoms associated with LPG engine vehicle driving are headache, exhaustion, feeling irritable, fiatigue, chronic couBh, eye and nose irritation, impaired hearing, diabetes and, psychological disorder. LPG engine vehicle drivers gain more income than electric three wheel vehide drivers do. When overall econornic and health factors are considered, however, there is less risk associated with driving electric engine vehicles than with driving LPG engine three wheel vehicles |
