In 2023, the length of highways below Class IV in China stood unchanged at 31.95 ten thousand kilometers. From 2024 to 2028, forecasts indicate it will remain constant at this level. This stability reflects a steady trend without any anticipated year-on-year growth or decline.

Future trends to watch for include:

Potential government policies aiming to reduce or upgrade substandard highways to improve transportation efficiency.
Technological advancements in road construction and maintenance which could impact classification and length measurements.
Environmental regulations influencing infrastructure improvements and highway designations.