City Rail Link Timetable Tests

AM 659 exits the CRL tunnel at Maungawhau, heading for Grafton and Newmarket. Trains ran in two different patterns through the tunnel for testing; one in a complete loop via Newmarket, and another with test trains terminating at Kingsland and returning back via the tunnel

18 October 2025

AM 659 re-enters the North Auckland Line at Maungawhau, heading for Newmarket before going back into the tunnel

18 October 2025

AM 238 descends the grade underneath the Down Main of the North Auckland Line, heading into the CRL

18 October 2025

AM 238 descends into the CRL. During testing, a full timetable simulation was carried out, with 18 trains per hour running through the tunnels, although none with passengers yet

18 October 2025

Following closely behind, AM 428 drops into the CRL tunnel

18 October 2025

One of the units involved in testing was new arrival AM 1142, having entered service earlier in October 2025. AM 1142 is seen here exiting the CRL and heading back onto the NAL towards Newmarket

18 October 2025

AM 1142 exits the North Island Main Trunk extension and re-enters the North Auckland Line at Maungawhau

18 October 2025

AM 552 passes through the trench leading into the CRL tunnel, just before passing underneath the Down Main of the NAL

18 October 2025

AM 552 passes through the trench, shortly before passing underneath Mt Eden Road and disappearing underground under emerging at Quay Park Junction

18 October 2025

AM 552 disappears underground on a timetable test run

18 October 2025

AM 633 exits the CRL heading for Newmarket, one of the 18 trains to pass through the tunnels in the last hour

18 October 2025

AM 633 climbs out of the CRL before merging back onto the North Auckland Line, on a timetable test run

18 October 2025

AM 633 emerges from underneath Mt Eden Road and clears the CRL tunnel as it heads for Newmarket on a timetable test run

18 October 2025

Viewed from Mt Eden Road, AM 319 has a go at climbing out of the CRL tunnel, also heading for Newmarket

18 October 2025

AM 319 passes around the tight curves out of the CRL tunnel, before making its way for Newmarket

18 October 2025