You developed a mechanism within Metrolinx for choosing which projects go first--or maybe for proving that the projects have value. I'm not sure what the term is; I call it cost-benefit-analysis, but you have a different term for it.
That's one of the things we've heard about throughout this: how do we put a value on the investment? In other words, there are two things. Is there a net dollar value and is there a net social value? Also, are we creating infrastructure that cities are not going to be able to afford to maintain, so that therefore they are going to be looking for handouts in the future to operate the system or to maintain the system. Have you any comments on that?