Dynamic and Static Analysis of Carbon Emission Efficiency in China’s Transportation Sector

As the main undesirable output of transportation sector, carbon dioxide (CO2) emission is key point to achieving balance in whole sector. In this paper, bounded adjustment measure (BAM) data envelopment analysis method used total factor production (TFP) efficiency system and source its inefficiency. Based on this, we use global Malmquist index combined with BAM analyze factors environmental productivity change from 2004 2019 terms dynamic changes technology level, scale management efficiency. The results show that reasons for low China’s sector are unreasonable energy utilization, excess labor resources excessive CO2 caused by level. Further shows overall has begun a slow rising trend. Improvement level biggest driving force growth while improvement should be strengthened There spatial differences future, different provinces focus improving transport industry.