Skip to main content

Road signs in a flap

The Danish Road Directorate and Daluiso have developed a new type of road sign to make road works and maintenance tasks more efficient. Called 'swap signs', their function is to flap open/shut near road works, spring cleaning or grass cutting by contractors.
July 25, 2012 Read time: 2 mins
The 1845 Danish Road Directorate and Daluiso have developed a new type of road sign to make road works and maintenance tasks more efficient. Called 'swap signs', their function is to flap open/shut near road works, spring cleaning or grass cutting by contractors.

Importantly, the smart thing about these signs is that they are put in place, on the hard shoulder and central reservation, in the small hours when there is least traffic on the roads. They are deployed in neutral mode (grey background) and therefore no information is seen by the road user until work actually gets under way.

When the contractor arrives, the signs are activated by an internet-based system using a laptop. Only signs covering the area actually being worked on need be activated and, as the work progresses along the roadway, these swap signs can be flapped open and closed as need be.

As Daluiso points out, up to an hour of working time can be used by a contractor just setting up conventional signs. With swap signs, contractors can start work as soon as they reach the working area.

For more information on companies in this article

Related Content

  • Researchers devise snow ploughing algorithm
    September 16, 2014
    Canadian researchers Olivier Quirion-Blais, Martin Trépanier and André Langevin have developed an algorithm to determine the most efficient routes for snow ploughs and gritters. Snow plough routing has always been something of a ‘black art’: to direct a fleet of show plough to clear priority roads without having the same road cleared several times while others are left untreated. Increasingly, GPS is being used to track the routes the clearing vehicles have taken but until now it has not been possible to ta
  • Jenoptik measures out the future
    June 15, 2022
    The speed of tech changes means Jenoptik is redrawing how it sees itself. Adam Hill catches up with Stefan Traeger and Kevin Chevis at Intertraffic Amsterdam to find out more about ‘extended reality’…
  • Preparing for unpredictable precipitation
    August 18, 2015
    ITS solutions are helping streamline winter road maintenance for Delaware and Illinois, two states that must deal with dynamic weather and varying snowfall totals. Andrew Bardin Williams reports. Wilmington and Newark (pronounced new-ark) are two vastly different cities that sit on opposite ends of Delaware. Newark is a sleepy university town of roughly 30,000 residents abutting the state’s western border with Maryland and Pennsylvania, and often gets confused with its larger namesake in New Jersey.
  • Cooperative infrastructure an aid to environmental aims
    February 3, 2012
    Speculate to accumulate Andras Kovacs looks at how the historical focus of cooperative infrastructure on safety can be oriented to aid emerging environmental aims