Skip to main content

New Zealand’s smart motorway opens

Commuters heading north on Wellington’s urban motorway will now get a smoother trip as the new lane is fully opened and New Zealand’s first smart motorway is turned on in the northbound direction. Using variable speed limits, which will be adjusted in real time in response to changing traffic conditions, the smart motorway will pace vehicles to smooth the traffic flow. Officials say this will result in safer journeys with more predictable travel times. It will also free up nearby roads for better public
July 15, 2016 Read time: 2 mins
Commuters heading north on Wellington’s urban motorway will now get a smoother trip as the new lane is fully opened and New Zealand’s first smart motorway is turned on in the northbound direction.

Using variable speed limits, which will be adjusted in real time in response to changing traffic conditions, the smart motorway will pace vehicles to smooth the traffic flow. Officials say this will result in safer journeys with more predictable travel times. It will also free up nearby roads for better public transport trips and for pedestrians and cyclists.

There are two types of signage on the motorway – variable message signs display information and messages, while lane control signs show either the speed limit or an X if the lane is closed.

Detectors and radars count vehicles and measure their speed. The smart system calculates the rate at which the road is getting congested, factors in what is likely to happen based on traffic records that are continually updated and monitored, and then adjusts the speed limit to pace the traffic and delay queues being formed.

The smart motorway reduces congestion by smoothing the traffic flow and maximising the number of vehicles that get through. As traffic builds, the system lowers the speed limit which allows vehicles to travel closer to each other, meaning more vehicles can fit on the road at any one time.

Related Content

  • The smart in smart parking
    March 29, 2018
    Whether you want to reduce congestion, increase parking revenue or reduce occupancy – or a mixture of all three – there is plenty of technology available. Andrew Bardin Williams considers the pros and cons. Drawn in by the promise of Smart City initiatives, communities across North America are embracing smart parking solutions in an effort to change citizens’ transportation behaviours for the better. They are doing this by using policy and ITS solutions to help de-incentivise parking for most people while
  • IBM Big Data helps Dublin improve transport operations
    May 17, 2013
    The city of Dublin is using IBM Big Data identify and solve the root causes of traffic congestion in its public transport network throughout the city, which means improved traffic flow and better mobility for commuters. Integrating data from a citywide network of sensors with geospatial data means that city officials are able to better monitor and manage traffic in real time. To keep the city moving, the council’s traffic control centre works together with local transport operators to manage an extensive ne
  • VRU safety report urges enforcement
    March 18, 2020
    Enforcement must be at the heart of a drive to reduce vulnerable road user deaths and injuries, says the latest report from the European Transport Safety Council. Its facts and figures give authorities the justification to invest more in camera technology and other ITS solutions
  • Swarco McCain adds VMS to Virginia
    December 19, 2022
    Signs can be run by AC or DC power, plus six of them are off-grid and solar powered