Open invitation to tender, deadline 16.06.2011, for comparative assessment of tunnel risk analyses for Norway, Spain and Switzerland and drawing up of proposals for common methods that, in conjunction with PIARC work, will provide a coherent basis for further work by the EC. Contract duration 12 months, or 100 person-days. Further information, specs and docs from Timo Aaltonen at EC in Brussels, tel +32 229651-67, fax -96, e-mail timo.aaltonen@ec.europa.eu to whom tenders or requests to participate must be sent. Time limit for accessing documents 08.06.2011. Tender specification available at http://ec.europa.eu/dgs/transport/tenders/index_en.htm. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=122106-2011. 16/11.