The data describes the road length of the national expressway in Japan from 2010 to 2015. In 2015, the national expressway length in Japan amounted to approx. nine thousand kilometers, representing a slight increase from around eight thousand kilometers in the previous year.
2010 | 7.8 |
2011 | 7.9 |
2012 | 8.1 |
2013 | 8.4 |
2014 | 8 |
2015 | 9 |