Managing Auckland's traffic
Ramp signalling is one of the latest initiatives we've introduced to help manage the increasing traffic volumes on Auckland's motorway network. We've worked closely with Auckland's local and regional councils and the Auckland Regional Transport Authority to install 61 ramp signals on the Southern, Northern and Northwestern motorways.
How ramp signals work
Electronic sensors built into the road detect when traffic becomes heavy, then activate the ramp signals.
When lights are red, vehicles stop and wait for the green signal. When lights turn green, two cars (one from each lane) can drive down the ramp to merge easily with motorway traffic. Ramp signals run on a fast cycle, with only a few seconds between green lights.
Learn about other measures we use to help keep traffic moving efficiently on our state highways, through:
