Skip to main content

Reflective values from DELTA

Danish company DELTA is introducing its new RetroSign GR3 Retroreflectometer for quality control and asset management of road signs and retroreflective materials with laboratory precision. The company says that to achieve these goals the triple geometry retroreflectometer is offered with GPS and RFID (radio frequency identification) reader.
March 16, 2012 Read time: 2 mins
Danish company 199 Delta is introducing its new RetroSign GR3 Retroreflectometer for quality control and asset management of road signs and retroreflective materials with laboratory precision.

The company says that to achieve these goals the triple geometry retroreflectometer is offered with GPS and RFID (radio frequency identification) reader.

The handheld instrument is used for measuring the retroreflection of traffic signs. It measures the coefficient of retroreflection (RA) according to US and European standards.

"The triple geometry facilitates simultaneous measurements at various observation angles as proposed by ASTM (The 3930 American Society for Testing and Materials). The RetroSign GR3 measures simultaneously at observation angles at 0.2/0.33º, 0.5º, and 1º," says DELTA.

"The point aperture geometry specified by ASTM ensures realistic and accurate readings replicating realistic driving conditions. Furthermore it enables the user to determine if a microprismatic sign sheeting material has been applied correctly.

Due to the DELTA proprietary gradient index ultra hard coating (UHC) technology the sensor response meets the ASTM 1709 requirements combining the CIE (International Commission on Illumination) eye response and CIE illuminant A." DELTA says that the RetroSign GR3 is designed to easily interface with current and future ID tagging and asset management systems, and the internal memory stores up to 250,000 readings, "which essentially means that the instrument never runs out of memory."

For more information on companies in this article

Related Content

  • Alcohol interlocks for vehicles could cut crashes in Europe?
    February 26, 2018
    There have been calls for mandatory alcohol interlocks in vans, lorries and buses across the EU. This follows the publishing of a new report which shows that more than 5000 deaths/year in the EU are still caused by drink-driving. As a result, member States have been asked to increase enforcement and introduce rehabilitation programmes for drink-driving offenders. The devices should be fitted in all new professional vehicles and also retrofitted to cars used by repeat drink-driving offenders, according to
  • IRF and ASECAP strengthen collaboration and sign an memorandum of understanding in Brussels
    June 14, 2019
    The 12th ASECAP Annual Road Safety Conference organised at the European Parliament in Brussels on 18th March set the scene for the signature of a Memorandum of Understanding between the International Road Federation (Geneva, Switzerland) and the European Association of Operators of Toll Road Infrastructures (ASECAP) aiming at further strengthening the collaboration between the two organisations. Signed by Anouar Benazzouz, Vice President of IRF, Susanna Zammataro, Director General of IRF, Bill Halkias, P
  • Safety trials for FORUM8 cycle simulator
    August 17, 2020
    Research by Morgan State University in the US using linked up driving and cycling simulators could help with safer urban road designs for both drivers and cyclists.
  • The Danish Road Directorate is testing climate-friendly asphalt
    June 4, 2018
    Over the next few weeks, Denmark is hosting a world-premiere in the field of green infrastructure. A busy section of the motorway exiting the greater area of Copenhagen northbound towards Elsinore has been chosen is being used for the trials. This is the first of several roads on the Danish state road network to receive a special climate-friendly asphalt, as part of the development of pavements that reduce emissions from road traffic. This type of asphalt has been developed over the last decade and is the