Skip to main content

Prismatic solar powered variable message signs

According to Swedish company Triplesign, its new range of variable message signs (VMS), developed for lane closure operations has a number of benefits over traditional LED VMS. Visually, the sign is like a normal static traffic sign, but appearances can be deceptive. There are actually several signs built into each unit, one for each traffic lane on a multi-lane road. Each lane can be independently operated by the traffic management system.
April 2, 2014 Read time: 2 mins
According to Swedish company 7697 Triplesign, its new range of variable message signs (VMS), developed for lane closure operations has a number of benefits over traditional LED VMS.

Visually, the sign is like a normal static traffic sign, but appearances can be deceptive. There are actually several signs built into each unit, one for each traffic lane on a multi-lane road. Each lane can be independently operated by the traffic management system.

As a lane closure sign, the VMS would be deployed on each traffic lane to deliver the closure information effectively. In this application, the sign can also be used to display a message to indicate the opening of an alternative lane, such as the hard shoulder, in the event of congestion or other hold-up. Traffic may also be directed to use a lane on the opposite side of the road during an incident, or temporary separate lanes can be created for HGVs or public transport.

The company says there is a large difference in cost when compared with LED-based VMS and the signs do not require a constant power supply to operate continuously.  In standby mode the sign requires either no power or almost no power, depending on the application. The power required is so small that Triplesign prismatic VMS can be solar operated as standard, avoiding expensive power supply installations and promoting a greener environment.

For more information on companies in this article

Related Content

  • Knowing when to slow down
    August 8, 2018
    Level 2 driver assistance vehicles have little problem reading fixed metal signs at the roadside - but it’s a different story with VMS in tunnels, finds Alan Dron. Following a series of hands-free driving tests in tunnels, an Australian road authority believes that car manufacturers have to up their game before vehicles have the required levels of competence to consistently perform ‘assisted driving’ tasks. The trials, in the state of Victoria late last year, tested the ability of several vehicles to stay
  • No in-road equipment for Queensland's free flow toll bridge
    February 1, 2012
    By May this year, the new Gateway Bridge in Brisbane, which is being built alongside an existing bridge, will be open. With it will come an end-to-end free-flow tolling system. Interview with Sue Caelers, Queensland Motorway Ltd. Queensland Motorways Ltd owns and operates 61km of roadway in the area around Brisbane, Australia. This includes the Gateway Bridge and the Gateway Extension, Logan and Port of Brisbane motorways.
  • Wavetronix radar-based traffic sensor cuts costs
    May 30, 2013
    While initial cost of radar based detection may be higher than that traditional loops, lower maintenance costs more than balance the books. Following successful field tests, the US city of Greenville, North Carolina, has recently agreed a new policy of phasing in Wavetronix traffic sensor technology’s radar-based SmartSensor Matrix system across its signalised traffic intersections. City traffic engineer Rik DiCesare expects the incremental implementation to deliver benefits to both the city’s taxpayers an
  • Development of cooperative driving applications for work zones
    July 17, 2012
    The German AKTIV project is researching several cooperative driving applications for use in work zones. PTV's Michael Ortgiese details progress. The steep increases in traffic volumes predicted back in the early 1990s have unfortunately been proven to be more than accurate. In Germany, the AKTIV project continues to look into cooperative technologies' potential to reduce the impact of those increased traffic volumes and keep traffic moving despite limitations in infrastructure capacity.