Data for: Integrated Data Envelopment Analysis Methods for Measuring Technical, Environmental, and Eco-efficiencies

We consider the provincial road transport subsystems as DMUs and measure their relative technical, environmental, and eco-efficiencies on the basis of the following seven input–output indices. Inputs: length of highways (million kilometers), civil vehicles (million), employees (million), and energy consumption (〖10〗^15 kJ); Desirable outputs: passenger turnover (billion passenger-km) and freight turnover (billion ton-km); Undesirable output: CO2 (million tons). We collect and extract data from China’s Statistical Yearbook 2017 and China’s Energy Statistical Yearbook 2017, which provide economic, transport, and energy data of Regional Road Transport Systems in 2016. Considering that the energy data for Tibet are missing, we only consider the 30 other provincial road transport systems in the following study. The data concerning length of highways, civil vehicles, employees, passenger turnover, and freight turnover are collected directly from the Yearbooks. By contrast, the energy consumptions and CO2 emissions are computed based on the consumption of gasoline and diesel oil. In particular, the energy consumption is computed on the basis of the average low calorific value of gasoline (43070 kJ/kg) and diesel oil (42652 kJ/kg), which are provided in China’s Energy Statistical Yearbook 2017. we compute the CO2 emissions depending on the methodology provided by the Intergovernmental Panel on Climate Change Guidelines for the National Greenhouse Gas Inventories (IPCC, 2006).本研究以省级道路运输子系统作为决策单元（Decision Making Unit，DMU），基于以下7项投入产出指标测算其相对技术效率、环境效率与生态效率。 投入指标：公路里程（单位：百万公里）、民用车辆保有量（单位：百万辆）、从业人员数（单位：百万）以及能源消耗量（单位：10^15千焦）； 合意产出：乘客周转量（单位：十亿人公里）与货物周转量（单位：十亿吨公里）；非合意产出：二氧化碳（单位：百万吨）。 本研究从《中国统计年鉴2017》与《中国能源统计年鉴2017》中采集并提取相关数据，上述年鉴提供了2016年中国各区域道路运输系统的经济、运输与能源相关数据。考虑到西藏自治区的能源数据缺失，后续研究仅纳入其余30个省级道路运输系统作为分析对象。 公路里程、民用车辆保有量、从业人员数、乘客周转量与货物周转量的相关数据直接从年鉴中获取。与之相对，能源消耗量与二氧化碳排放量则基于汽油与柴油的消耗量计算得到。具体而言，能源消耗量的计算依据《中国能源统计年鉴2017》中给出的汽油（43070千焦/千克）与柴油（42652千焦/千克）的平均低位发热量。二氧化碳排放量则采用政府间气候变化专门委员会（Intergovernmental Panel on Climate Change，IPCC）2006年发布的《国家温室气体清单指南》中提供的方法进行测算。