Due to comparatively high access to personal cars and passenger carriers for either intracity or intercity travel, the road transport is the most preferred and used one among the other types of transportation in Turkey. Although, a variety of statistics is available related to usage of roadways, there has not enough attention been paid yet to energy efficiency of using roadways. However, being aware of the importance of the energy efficiency is essential for planning future transportation investments particularly for the countries like Turkey which have limited sources to allocate, especially considering recent increases in energy costs. In this work, an energy efficiency of using road transportation in Turkey is studied by taking into account of freight and passenger movements separately. Data covering the period from 1988 to 2005 are analyzed. It is observed that although the usage of road transport continuously increases, the energy intensity continuously decreases as well. This indicates a declining tendency in the energy usage per unit, in spite of the increase in the road usage. Simply, it reflects an increase in the energy efficiency. In a similar fashion, the energy intensity for the passenger movement shows a declining tendency as well, regardless of increasing passenger movements. It is also observed that those values are significantly low with regard to values in developed countries. This study can shed light on current status and can give a new direction for future planning and policies in highways transportation of Turkey.