Introduction / Markku Lehtonen, Pierre-Benoît Joly, and Luis Aparicio -- Socioeconomic evaluation of megaprojects: critical readings -- In search of an assessment of the future : the case of the U.S. nuclear waste programme / Basak Sarac-Lesavre -- Mega projects and mega risks : lessons for decision-makers of large-scale transport projects : OMEGA centre lessons derived from European, US and Asia-Pacific case studies / Harry Dimitriou, E. John Ward & Philip G. Wright -- The lyon-turin high-speed railway project and the escalation of commitment / Thomas Reverdy and Markku Lehtonen -- The Finnish success story in the governance of a megaproject : the (minimal) role of socioeconomic evaluation in the final disposal of spent nuclear fuel / Markku Lehtonen, Matti Kojo and Tapio Litmanen -- How stakeholder and citizen participation influences evaluation criteria for megaprojects : the case of the Belgian LILW repository / Anne Bergmans and Marlies Verhaegen -- Does technical risk dialogue entail socioeconomic valuation? : the case of scientific dispute over copper corrosion in a spent nuclear fuel disposal project / Tapio Litmanen, Matti Kojo, Mika Kari and Jurgita Vesalainen -- Novel approaches to evaluating the socioeconomic in megaprojects -- Ex ante evaluation of megaprojects in a time of uncertainty : what counts and what is countable in the canadian context? / Moktar Lamari, René Prévost & Line Poulin-Larivière -- The potential contribution of social impact assessment to megaproject developments / Frank Vanclay -- Collective construction of social indicators of well-being: analytical insights from an experiment / Michel Renault -- Addressing the evaluation-implementation gap in transportation infrastructure research with qualitative comparative analysis / Stefan Verweij -- Conclusions / Markku Lehtonen, Pierre-Benoît Joly, and Luis Aparicio.