Austria; Finland; France; Germany; Great Britain; Italy; Norway; Sweden; Switzerland; test site and equipment of Repparfjord Tunnel in Norway; test site and equipment of Lappeenranta Tunnel in Finland; Fire tests in Repparfjord Tunnel: description and dats; tests regarding safety and emergency: description and data; fire tests in Lappeenranta Tunnel: description and data; evaluation and technical conclusions; laboratory fire tests on tunnel lining systems