Network Rail Director Mick Carne said the planned £38 billion upgrade to Britain's railways will improve the resilience of the system and the service for passengers.
Speaking to Consumer Editor Chris Choi he said the investment announced today was vital, and that he was "very conscious of the fact" that Network Rail "had a better job to do".
More top news
Damon Smith from Newton Abbot was found guilty of planting a home-made bomb on the London Underground in October.
Could this professor have just landed the dream job?
Megan Hurley had reportedly been at the concert with her brother Bradley, 21, who remains in hospital after the terror attack.