In 2023, the length of municipal roads in Japan stood at approximately 1.03 million kilometers. Forecasts from 2024 to 2028 indicate a gradual growth in road length, with a slight year-on-year increase of about 0.96% reaching 1.05 million kilometers in 2028. The five-year Compound Annual Growth Rate (CAGR) is projected to be modest, reflecting stabilization in infrastructure expansion.

Future trends to watch for:

Emerging technologies in road construction enhancing efficiency and sustainability.
Impact of population decline and urbanization patterns on infrastructure demand.
Government investment in smart transportation systems.