Between 2013 and 2023, the turnover of construction of railways and underground railways in Spain demonstrated significant fluctuations. The peak occurred in 2016 at €4.83 billion, but from then, the overall trend has been downward. In 2023, the value stood at €1.86 billion, illustrating a -7.38% year-on-year change and a -6.33% compound annual growth rate (CAGR) over the past five years.

The forecasted data from 2024 onwards indicates a continued decline. By 2028, the turnover is projected to decrease to €1.14 billion, equating to a -7.8% average annual reduction and an overall decline of -33.37% in just five years.

Future trends to watch for include:

Potential policy changes or public investments that could impact infrastructure spending.
Technological advances and their effect on construction efficiency and costs.
Economic conditions, including inflation and recession risks, which could further influence investment in public works.
Environmental regulations and initiatives aimed at promoting sustainable transportation infrastructure.