This explains what happened at Genoa's Bertè tunnel
Italy's Tunnels violate the EuropeanUnion Directive 2004/54 for Safety of Tunnels
https://tunnelcontact.com/discussion/view/10093/italys-tunnels-violate-the-european-union-directive-200454-for-safety-of-tunnels
You might also try getting some research grants from UK government, Or from EuropeanUnion. A colleague of mine from Germany applied and got partial funding from a European research fund. It requires you to find partners in other countries and academia though.
I think the title can be deceiving. The tunnel system Albarradón de Ecatepec was built by the European invaders, but the paintings found in the tunnels were painted by natives worked in the construction of the tunnels.
Your partner in Europe.
Nordisk Tillväxt - Strategy | Development | Infrastructure
Nordisk Tillväxt is a...ure projects helping infrastructure businesses achieve sustained growth in the Europ...