The road freight volume for the metal structures sector in Portugal experienced significant volatility from 2013 to 2023. Starting at 10.0 million tonne kilometers in 2013, it saw various peaks and troughs. The highest volume recorded was 22.0 in 2018, but it significantly declined in subsequent years, reaching 9.0 in 2023. This represents a year-on-year increase of 28.57% from 2022's low point of 7.0. The 5-year CAGR leading up to 2023 was -16.37%, indicating an overall gradual decline despite short-term recoveries.

Looking forward from 2024 to 2028, the forecasted data shows the volume stabilizing at around 8-9 million tonne kilometers. The expected 5-year CAGR for this period is -2.33%, with an overall forecasted decline of 11.11% over these five years.

The future trends to watch for include:

Technological advancements improving logistics efficiency.
Economic conditions influencing industrial output and demand for metal structures.
Environmental regulations impacting the transport sector.