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

  • New asphalt compaction technologies boost quality
    February 28, 2012
    More sophisticated compaction technologies are now coming to market, offering a wide range of benefits to users
  • New asphalt compaction technologies boost quality
    April 13, 2012
    More sophisticated compaction technologies are now coming to market, offering a wide range of benefits to users While asphalt paving techniques vary widely between North America and Europe, there is greater commonality in the compaction methods required. New developments in compaction rollers are offering contractors using both North American and European style paving techniques major gains in quality. According to Robert Horan, a regional engineer for the US-based Asphalt Institute, intelligent compact
  • Zehntner ZRM 6013
    July 2, 2012
    According to Zehntner, the Swiss manufacturer of testing instruments, despite some initial costs, quality control quickly pays for itself, especially with budgets getting tighter. Its solutions include three models which can be used according to requirements. For example, its ZVR 6000 is primarily designed for the fast comparative assessment of the night visibility (RL) of road markings. However, says Zehntner, the ZVR 6000 can accomplish much more including the inspection of dry or wet road markings under
  • Data handling for efficient machine control
    October 16, 2012
    The rapid increase in information availability is transforming the construction sector. Conventional methods used for sourcing geographic data based on maps and localised sampling meant that there was often a lack of accurate information relating to ground conditions at specific areas where work was planned, often resulting in unwelcome surprises for construction companies along with additional costs for projects.