Skip to main content

DELTA launches its LTL-M

Danish company DELTA has launched its new LTL-M mobile retroreflectometer. The company, a leading supplier of retroreflectometers for road markings and road signs, says that until now hand-held retroreflectometers have been the only instruments accurate enough and accepted for contractual valid measurements of road markings. However, it points to laboratory and field tests performed by the Swedish Road Research Institute (VTI), which compared the LTL-M, an existing mobile retrometer and using a hand-h
April 5, 2012 Read time: 2 mins
DELTA's LTL-M retrometer is based on new optical technology and can be easily mounted on a car
Danish company 199 Delta has launched its new LTL-M mobile retroreflectometer.

The company, a leading supplier of retroreflectometers for road markings and road signs, says that until now hand-held retroreflectometers have been the only instruments accurate enough and accepted for contractual valid measurements of road markings.

However, it points to laboratory and field tests performed by the Swedish Road Research Institute (VTI), which compared the LTL-M, an existing mobile retrometer and using a hand-held instrument as a reference, and showed that the LTL-M measures with an accuracy similar to hand-held retrometers.

"Hand-held instruments have limitations. They provide sample measurements which are not representative for retroreflection measurements of the full length and width of road markings. Hand-held instruments may need costly road closure," says DELTA.

"The LTL-M mobile retroreflectometer is based on a new technology with patent pending. LTL-M offers accuracy in line with hand-held instruments under all driving conditions including bumpy roads and curves, and provides continuous measurement at normal driving speeds in full length and width of road markings combined with checking RRPMs (cat's eyes)." DELTA says the system can be integrated with existing mobile road measurement systems as well as used as a stand-alone unit easily mounted on a car.

For more information on companies in this article

Related Content

  • Asphalt plant technology and effects on production costs
    November 14, 2017
    Asphalt plants are industrial units capable of producing asphalt on a full-scale basis An asphalt plant has several key functions and is designed to accurately dose the aggregates and asphalt to ensure the correct proportions, as established in the mix. The plant should dry and heat the aggregates completely, regardless of their nature and characteristics, in order to obtain perfect adhesiveness with the asphalt binder. The drying system’s combustion gases have to be filtered so that fine aggregates tran
  • New tests for modified bitumens and mixes with RAP
    December 19, 2014
    This month we learn about a new test which is helping to predict the performance of asphalt mixtures containing recycled materials and modifiers, and we showcase some of the new testing equipment recently launched - writes Kristina Smith Researchers in the US have come up with a new test to help owners and contractors better predict the performance of their roads. “The problem is that the current tests cannot determine the performance of new materials,” said Dr Haleh Azari, manager of the AASHTO Advanced P
  • Big measuring from TinyMobileRobots
    February 27, 2017
    Small is beautiful, especially when it comes to robots, explains Jens Peder Kristensen, director of Danish company TinyMobileRobots With the increased functionality of outdoor robots, the market for autonomous robots as a replacement for human work has widened. The human touch is still needed when dealing with terrain that is difficult to navigate or with a crowded construction site.
  • Advances in concrete paving materials
    July 9, 2012
    Innovations in materials technology, as well as machines, could provide a major boost to the concrete paving sector - Mike Woof reports Development of new material technologies for the concrete paving sector continues apace and the latest innovations could provide the biggest boost for this market in many years. High performance cementitious material (HPCM) is an innovative concept that has been developed and tested for road surfacing applications as part of a project in which the UK's Transport Research La