The technological development of buses with new alternative fuels is considered in this paper. Several types of fuels are considered
as alternative-fuel modes, i.e., electricity, fuel cell (hydrogen), and methanol. Electric vehicles may be considered the alternative-fuel
vehicles with the lowest air pollution. Hybrid electric vehicles provide an alternate mode, at least for the period of improving the
technology of electric vehicles. A hybrid electric vehicle is defined as a vehicle with the conventional internal combustion engine and
an electric motor as its major sources of power. Experts from different decision-making groups performed the multiple attribute
evaluation of alternative vehicles. AHP is applied to determine the relative weights of evaluation criteria. TOPSIS and VIKOR are
compared and applied to determine the best compromise alternative fuel mode. The result shows that the hybrid electric bus is the
most suitable substitute bus for Taiwan urban areas in the short and median term. But, if the cruising distance of the electric bus
extends to an acceptable range, the pure electric bus could be the best alternative.
The technological development of buses with new alternative fuels is considered in this paper. Several types of fuels are considered
as alternative-fuel modes, i.e., electricity, fuel cell (hydrogen), and methanol. Electric vehicles may be considered the alternative-fuel
vehicles with the lowest air pollution. Hybrid electric vehicles provide an alternate mode, at least for the period of improving the
technology of electric vehicles. A hybrid electric vehicle is defined as a vehicle with the conventional internal combustion engine and
an electric motor as its major sources of power. Experts from different decision-making groups performed the multiple attribute
evaluation of alternative vehicles. AHP is applied to determine the relative weights of evaluation criteria. TOPSIS and VIKOR are
compared and applied to determine the best compromise alternative fuel mode. The result shows that the hybrid electric bus is the
most suitable substitute bus for Taiwan urban areas in the short and median term. But, if the cruising distance of the electric bus
extends to an acceptable range, the pure electric bus could be the best alternative.
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