The CRL will allow for significantly improved travel times to the city centre and across the entire rail network.
Without the CRL, higher frequency services wouldn't be possible as the number of trains is limited by the dead-end terminus at Britomart.
Here is an indication of the radical effect on train travel times. The current times below are based on taking a train to Britomart and then walking to mid-town or taking a bus to Karangahape Road. This will change with the opening of the two new stations.