In contrast, Quadrant Analysis considers only the mean
values of importance and overall satisfaction as the indicators. Consequently, the Impact
Score results implicitly have more reasonable and accuracy than Quadrant Analysis results
because it take the actual phenomenon or the frequency of number that travelers
encounter with the actual problems in diary life (frequency of experiencing bus service
problems by riders) into consideration by defining its to be one of the key variables,
whereas the Quadrant Analysis considers only riders’ attitudes (some attributes are perceived
by riders to be the critical factors that impact them violently, but in reality, the
frequency of problem occurrence of these attributes may be low