Back on topic. I just read a very good paper on the failures of big public construction projects, including in passing the Big Dig. Worldwide, new train projects tend to come in at double the predicted cost, and service half the riders originally estimated. Or course, the Big Dig did worse than that on cost.
There is also a nice analysis of why these projects are always over budget.
http://www.sbs.ox.ac.uk/centres/bt/Documents/UnfittestOXREPHelm3.4PRINT.p
There is also a nice analysis of why these projects are always over budget.
http://www.sbs.ox.ac.uk/centres/bt/Documents/UnfittestOXREPHelm3.4PRINT.p