The City Rail Link will be built in two 3.45km-long, twin tunnels up to 42 metres below the city centre.
The biggest myth about CRL is that it's just a inner-city "loop." It's not.
Think of it like the Waterview tunnel, joining up motorways.
By joining the rail network and adding new stations, the City Rail Link will revolutionise the way you get to your destination.
It allows the rail network to almost quadruple capacity
This animated flyover video shows the overall design and layout of CRL
CRL will extend the existing rail line underground through Britomart, to Albert, Vincent and Pitt Streets, then cross beneath Karangahape Road and the Central Motorway Junction to Symonds Street before rising to join the western line at Eden Terrace.
How long will your train journey be after CRL is finished?