This study develops an automobile life-cycle analysis framework considering lifetimes\nof new and used passenger cars. Using the analysis framework based on the Weibull\nsurvival distributions of new and used cars, I addressed the question of how the market\nexpansion and lifetime extension of used cars affect life-cycle CO2 emissions through\nthe entire economy. The results show the following.Under the benchmark lifetime\nfunction, a 10% increase in the market share of used cars under benchmark average\nnew vehicle lifetime of 11.50 years yields 16.9 million tons of CO2 reduction in the\ncumulated life-cycle CO2 emissions during 1993ââ?¬â??2014. I further found that a combined\npolicy of vehicle lifetime extension and market expansion of ââ?¬Å?usedââ?¬Â cars can contribute\ntoward a low-carbon transition society. I conclude that modifying the demand policy\nwith a focus on ââ?¬Å?usedââ?¬Â cars with higher fuel efficiency, as well as setting a target car age\nof used cars, would be environmentally beneficial.
Loading....