We were concerned that we couldn't find the technical evidence. We read through the Infrastructure Ontario briefings and their methodologies. We understand that perhaps studies were done to assess that. There are reports online, but they don't give the details of how those were assessed, and they don't go into the project-by-project details that you would like to see to understand if that really is the risk we've been carrying on conventional-build projects.
On October 23rd, 2012. See this statement in context.