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Background | Additional Waitemata Harbour crossing | Manukau Harbour crossing | Mt Roskill extension | Waterview Connection | Western ring route tolling proposal | Motorway ramp signals

Motorway Ramp signals

Ramp signals are traffic lights at motorway on-ramps that manage the flow of traffic onto the motorway during peak periods. When lights are red, vehicles stop and wait for the green signal. When lights turn green, two cars (one from each lane) are able to drive down the ramp to merge easily with motorway traffic. Ramp signals run on a quick cycle, only a few seconds between green lights. Ramp signals are switched on only when necessary, especially during morning and afternoon peaks and other busy times.

Ramp signals are installed and operating on:

• Curran St and Wellington northbound on-ramps
• new Northwest to North (SH16 - SH1) northbound link
• Port to North (SH16 - SH1) northbound link
• St Marks Road on-ramp (southbound)
• Khyber Pass on-ramp (southbound)
• Grafton Road on-ramp (southbound)
• Symonds Street on-ramp (southbound)
• Hobson Street on-ramp
• Greenlane on-ramp (southbound)
• Ellerslie-Panmure on-ramp (southbound)

Ramp signalling systems are widely used internationally and have been shown to reduce congestion and improve traffic flows. This results in more consistent travel times, safer merging and fewer accidents.

For more information visit the NZ Transport Agency website.