One of the most important factors in the Romanization of Hispania was the construction of an extensive network of roads linking the main towns.

Tarraco, in its role as a provincial capital, was the terminal for major land and sea routes.

The so-called Via Augusta, that went from Rome to Cádiz, passed through Tarragona following the approximate route of the present-day Barcelona-València road.

All along the roads there were milestones, cylindrical stone blocks inscribed with the number of miles to the nearest town or to the road's point of origin. They were also inscribed with the name of the emperor or magistrate who had the road built or repaved.

There are two of these milestones in this room. One was found near El Morell, about 10 km from Tarragona. It was placed around the middle of the 3rd century AD when the road, which led inland from Tarraco, was consolidated and repaved.

The other was found in the last century when the Tarragona Bullring was being built. Its inscription refers to the Emperor Augustus and it is believed to have been placed along the Via Augusta.