The forecast for Japan's road infrastructure investment as a share of total inland transport infrastructure investment shows a downward trend, decreasing from an estimated 59.31% in 2024 to 54.33% by 2028. Compared to 2023, the share continues to decline, with a year-on-year decrease indicating a gradual shift in investment priorities. Over the five-year forecast period, the compound annual growth rate (CAGR) reveals an average annual decline in the share of road infrastructure investments.

Future trends to watch for include:

Increased investment in rail and urban transport projects as Japan focuses on sustainable and efficient transportation modes.
Potential shifts in government policy impacting infrastructure funding priorities.
Technological advancements in transport that may influence funding allocations.