Don et al
Firstly, I agree there are still 6 months until the Electric Trains have been promised, but only 6 weeks until the RoW is handed over to traffic.
My experience tells me that Contractors have difficulty fighting fires on too many fronts and work processes most efficiently when it is completed in an orderly fashion. Justapax is right about the attitude which rumbles its way down to the bloke digging the ditch; time becomes elastic, or worse a joke.
The old adage is that goals need to be identifiable and measurable; at present the electrification works are not measurable.
I compare the underpass for which, even as an outside observer the progress, of work was always (nearly) logical and progressive; my assessment is that baring calamity it will finish on time. Then there was the associated signalling and we all know the outcome of that.
When it comes to signalling I would have walked away from this topic (done enough damage) until I saw something yesterday.
At Warradale, as everywhere else new conduit is being installed, I saw that the conduits were going to an existing signal mast. This means that in the next 6 weeks, cables have to be pulled, ends terminated, point to point checks done and signed off, equipment energised and tested and then the whole shebang commissioned. This is not 5 km as for Goodwood/Millswood but 30 km. Do I have to spell it out?
The only hope is that traffic will recommence with the old signalling system operational and then progressively cut over to the new system.
Why a new system? Probably because an axle counter based system is cheaper than having to install impedance bonds at all the IRJs. I would appreciate feedback on this.
As for Aaron, there was a research gentleman named Aaron interviewed on TV last night who worked at Adelaide Uni.