Collapse of a signalling structure in the A-6 motorway

A lorry, inadvertently travelling with the bed raised, impacted a large signalling structure of the A-6 motorway. This led to the collapse of the structure, causing several fatalities and injuries, and interrupting the traffic of this major artery for several hours.

Principia investigated in situ all the relevant elements, the marks left, and the effects caused by the accident. This allowed formulating and performing realistic simulations of the impact and reproducing reliably the failure process of the structure.