Mobile retroreflectometer upgrade

Delta has unveiled two important new features for the company’s LTL-M mobile retroreflectometer – an overhead camera and distance measurement instrument (DMI) – to further accommodate customer requirements. The overhead camera is placed in the vehicle windscreen, providing a complete HD video of the markings and the road as seen by the driver.
March 20, 2012 Read time: 2 mins
33 Delta has unveiled two important new features for the company’s LTL-M mobile retroreflectometer – an overhead camera and distance measurement instrument (DMI) – to further accommodate customer requirements.
The overhead camera is placed in the vehicle windscreen, providing a complete HD video of the markings and the road as seen by the driver. The video is stored for later review and is displayed synchronised with an overlay of the actual measurement data. The DMI is mounted on one of the vehicle wheels in order to provide accurate distance measurement on road stretches where the GPS may fail due to lack of satellite contact.

LTL-M provides continuous measurement of night visibility at traffic speed in full length and width of road markings. In addition, the system measures the daylight contrast, the width of markings and records the presence of road studs. The software supplied with the instrument generates easy-to-read reports on the measurements and can transfer data to Excel for further processing.
According to Kjeld Aabye, Delta’s marketing manager, “Even with the new features added, the LTL-M system continues to be very easy to mount, calibrate and operate and it provides data with accuracy in line with handheld instruments under all driving conditions.”
Detection, Monitoring & Machine Vision

For more information on companies in this article

Related Content

  • The twisting path to enforcement’s future
    June 5, 2014
    Survey reveals some division of views about enforcement’s future as Colin Sowman discovers. Technological advances and legislative changes pose many questions for those involved in road enforcement, ranging from the changing demands of privacy and data protection legislation to the practicalities on multi-speed enforcement. So to get the industry’s views ITS International took soundings on some of these bigger questions. In a world where many vehicles are fitted with GPS linked ‘black box’ telematics system
    Read More
  • Debating a cost-effective means of road user charging
    July 20, 2012
    Does GPS/GNSS-based technology provide a cost-effective means of charging or tolling on a national or international level, or are the issues pertaining to effective enforcement an obstacle. Here, leading equipment manufacturers debate the issue.
    Read More
  • Terrestrial solution to stellar shortcomings
    December 5, 2013
    Inherent weaknesses in satellite communications are leading several countries to re-evaluate terrestrial-based backup systems. There is a tale frequently told in satellite navigation circles, of how landing systems at Newark Airport were disrupted by a truck driver using GPS jamming equipment as he drove along the New Jersey Turnpike. While there was no threat to flight safety as the interference to GPS reference stations being tested, the story highlights how apparently benign threats have the potential t
    Read More
  • Options abound for road weather sensing
    September 6, 2017
    Meteorological organisations invest millions in super-computers to crunch data for ever-more accurate forecasts but inherent unpredictability means that other methods of alerting drivers and road authorities to fast-changing weather and highway conditions are essential. For years, static weather sensors to measure factors such as surface water, ice or high roadway temperatures have been embedded in highways to provide such data. But that is changing.
    Read More

Highlighted Content