With the construction of the Lane Cove Tunnel, Metroad 2 was truncated at the intersection of Pacific Highway and Longueville Road in Lane Cove. Upon it's completion, Metroad 2 was routed through the Lane Cover Tunnel.
With the opening of the Lane Cove Tunnel and north-facing ramps on Falcon Street, Metroad 10 was truncated at the Warringah Freeway.
Thanks to OZROADS for the information.