you obviously don't live in NSW then....
The solution will involve a parliamentary oversight committee run by Rev. Fred Nile (with all of his IT experience) . This should take about 4 years of junket, visiting major railway locations such as Paris, London and Rome, to see how things are meant to work.
The committee will recommend about $2.1 billion spending required to fix problems. A tender by the government will receive bids ranging from $4.32 to $9 billion to fix, a final, FINAL price of $12 billion will be settled on, with a company headed by the Treasurer's brother-in-law.
This will then take another 4 years to implement.
After 6 years, with costs blown out to $18 billion, the government will finally admit that nothing has been done, they can't recall who the person who signed the contract was, or where he lives, the construction company will turn out to be based in a beachside shack in Belize, with bank accounts held in criminals-are-our-friends-Switzerland.
The next day, the signals will fail again, but this time the software will have forgotten the 'safe mode' setting, having been changed by the government to 'make sure every train gets there really fast and early to keep the voters happy' setting.
Chaos ensues, but being NSW this is normal.