This comes days after the major failure at Stafford? Is anyone investigating the possibility of cyber attacks?
Must be not far short of 40 years old for the oldest parts?
That part commissioned as part of WARM, so 2003/4 then. Time flies.
Must be interesting getting spare parts for the 'computer' parts though. Never had a computer at home last anywhere near that long.
I don't have any direct knowledge about NR's plan for dealing with obsolescence, but typically organisations facing situations like this will buy up the last remaining stock of spare parts when the manufacturer announces the end-of-life. That, and buying up equipment that's recovered from upgrade projects elsewhere.
Given that both the Lea Valley and the Southbury Loop have junctions connecting them to the T&H, it’s highly plausible.
The GoBLin stock is stabled at Ilford, so if everything out of Liv St was struggling then that would be difficult
No trains on the Gospel Oak - Barking route stable at Ilford, and the incident happened in the middle of the day, so everything would already have left the depot.
I know of an SSI system that has been operational for 32 years and most of it is original. Ironically some of the newest modules are the most unreliable.
One thing that's becoming increasingly common in other areas, so likely also in the railway industry, is emulating old hardware in virtual machines running on modern equipment. This can be quite challenging as sometimes they have to replicate the
Yes, that is one possible work around. But in order to fully and accurately emulate an existing system, you need to know that system in a very great level of detail. And trying to do that if the original documentation is not available is time consuming, expensive and finding any problems (bugs) can be difficult. Plus as you say, there is the issue of undocumented issues. Some of which may have been happy coincidences, such as subtle timings that results in the original system working but screws up a modern recreation or emulation.
That will be the workstation name at Liverpool Street IECC which interfaces with the workstation covering the T&H route at South Tottenham.
One way around this is by designing a VM that replicates the actual behaviour of the system as implemented rather than as designed. Basically, you hook existing hardware up to a system that allows them to send every possible combination of inputs and record the outputs and then replicate them.
