We’ve got our hands on a copy of the BCR study funded by the NZTA and others. BCRs continue to be a contentious issue for the evaluation of transportation projects. They are intended to be a tool to help evaluate similar projects, but invariably they are used by commentators on both sides to indicate the outright justification for a project (or not, as the case may be.)
I haven’t had a chance to read through all 156 pages of the document yet (full title “The Implications of Discount Rate Reductions on Transport Investments and Sustainable Transport Futures”) but will do so when I have time.
It will be interesting to see how independent the research is, given the funders are Roading New Zealand, Downer EDI Works and the NZTA. Have a look for yourself, here: