In 2023, the length of dedicated high-speed railway lines in France stood at 2.17 thousand kilometers. The forecast data indicates a modest increase to 2.18 thousand kilometers in 2024, with a further slight rise to 2.19 thousand kilometers from 2025 through 2028. These changes represent a year-on-year growth of approximately 0.5% from 2023 to 2024, and a negligible increase thereafter. Analyzing the compound annual growth rate (CAGR) from 2024 to 2028 reveals an average annual growth close to zero, indicating a plateau trend in the expansion of high-speed railway lines over this period.

Future trends to watch for include:

Potential government initiatives or investments aimed at further expanding the high-speed railway network.
Technological advancements that could improve the efficiency and capacity of existing railway lines.
Fluctuations in public and environmental policies influencing transportation infrastructure investments.