As of 2023, Japan's National Expressways measured approximately 9.75 thousand kilometers. Forecasts indicate a steady growth trend, with the length expected to reach 10.32 thousand kilometers by 2028. This represents a compound annual growth rate (CAGR) of about 1.15% from 2024 to 2028. Year-on-year analysis shows consistent expansion, with each subsequent year seeing a slight increase in expressway length. Despite being gradual, this growth highlights ongoing infrastructure development.
Future trends to watch include technological advancements in construction that may accelerate expressway expansion, integration of smart transportation systems, and potential policy shifts focusing on sustainable infrastructure development and maintenance efficiency.
