smallspy
Senior Member
I hope that they don't need to spend too much time on clearance testing. It seems unbelievable that with so many years of operational experience with the tr that they would even take the chance of having a tunnel design that would be remotely close to having clearance issues. Hopefully the majority of the summer and fall's worth of testing is going to be for atc calibration and not on fundamental issues that really shouldn't be showing up.
They don't spend much time doing it. That's why they don't have a dedicated car for it anymore.
But they have to do it. For instance, last year they found that the contractor pouring the invert mis-calculated in a number of spots after they'd put the double-ties and rail in, and so they had to go back and remove all of the installed equipment to shave a couple of inches off of it.
At the end of the day, it's part of the process of commissioning the line, and so it has to be done.
Dan
Toronto, Ont.