Alison Munro, the chief executive of High Speed Two Ltd said: "This is a project that the country needs. The existing railway is becoming increasingly full and by the middle of the next decade parts of it will be effectively full.
"So we need to start now to plan to have that capacity in place."
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Southern Railway has announced it will reinstate more than 100 daily train services which were cut to make its timetable more "resilient".
An 18-year-old boy is fighting for his life in hospital after being shot in the head.
Broadcaster Jeremy Vine has published shocking footage of of him “getting a kicking” from an angry driver during a heated confrontation.