Fuel efficiency intuitively differs between drivers, depending on their socio-demographic characteristics and driving behavior, and can change even for the same driver in different driving environments. In this work, we examine the impact of socio-demographic characteristics, driving behavior on fuel efficiency using naturalistic driving data collected from a busy freeway in Austin, Texas. Our results show that during off-peak period, fuel efficiency is negatively correlated with commute frequency. Furthermore, fuel efficiency is also closely related to commute purpose, age and gender. During peak period, female drivers’ fuel efficiency is worse, while correlations with other socio-demographic characteristics become less prominent. In terms of driving behavior, high-speed drivers with higher average speeds and less speed variance achieve the best fuel efficiency during both peak and off-peak hours. Our study sheds lights on specific eco-friendly driving behavior and education can be targeted at those who tend to consume more fuel.

燃油效率在直观上因驾驶员的社会人口统计学特征和驾驶行为而有所不同，甚至对于同一位驾驶员在不同的驾驶环境中也可能发生变化。在这项工作中，我们使用从得克萨斯州奥斯汀的繁忙高速公路收集的自然驾驶数据，研究了社会人口特性，驾驶行为对燃油效率的影响。我们的结果表明，在非高峰时段，燃油效率与通勤频率呈负相关。此外，燃油效率也与通勤目的，年龄和性别密切相关。在高峰期，女司机的燃油效率较差，而与其他社会人口学特征的相关性就不太明显。在驾驶行为方面，具有较高平均速度和较小速度偏差的高速驾驶员在高峰和非高峰时段均能达到最佳燃油效率。我们的研究揭示了特定的环保驾驶行为，可以针对那些倾向于消耗更多燃油的人进行教育。