Based on utility theory, truck travelers choice models were studied through stated preference survey.
以效用理论为基础，通过意向调查研究了高速公路货车出行者出行选择模型。
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Future research need to base upon more large survey sample in individual level, or confirm other utility proxy, such as job satisfaction and subjective wellbeing.
未来亟需扩大样本量进行更大范围的实证研究，或验证其他效用代名词，如工作满意以及主观幸福感。
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Instructions for creating a utility that will survey printers to discover those experience a paper jam or other problem.