Highly accurate mobile retroreflectometer

Danish company DELTA has unveiled its new LTL-M mobile retroreflectometer, which it says has taken about four years to develop. The unit, seen at the recent Traffex show in Birmingham, UK, measures all types of road markings at a simulated distance of 30m "with the highest level of accuracy." The company says that the LTL-M is to be used mounted on a vehicle measuring retroreflection at normal traffic speed providing full overview of the condition of the road markings. DELTA says the instrument operat
February 14, 2012 Read time: 2 mins
DELTA's new LTL-M mobile retroreflectometer measures all types of road markings
Danish company 199 Delta has unveiled its new LTL-M mobile retroreflectometer, which it says has taken about four years to develop.

The unit, seen at the recent 346 Traffex show in Birmingham, UK, measures all types of road markings at a simulated distance of 30m "with the highest level of accuracy." The company says that the LTL-M is to be used mounted on a vehicle measuring retroreflection at normal traffic speed providing full overview of the condition of the road markings.

DELTA says the instrument operates with an accuracy of typically +/-5%, which is in line with DELTA's hand-held retroreflectometers LTL-2000, LTL-X and LTL-XL.

It uses the latest camera and illumination technology, which results in high accuracy independent of changes in the geometry of the system through an automatic image process compensating for vehicle movements.

Consisting of three units (the sensor mounted on the outside of the vehicle with camera, flashlight and GPS; processor inside the vehicle; and the graphical user interface/GUI Tablet PC placed next to the driver), the LTL-M was the subject of a study carried out by VTI, the Swedish National Road and Transport Research Institute. The results are reported in Evaluation of the LTL-M, Mobile measurement of road marking, compiled by Sven- Olof Lundkvist in 2010.

For more information on companies in this article

Related Content

  • Brisbane’s Airport: Innovative Management of One of the World’s Busiest Runways
    June 26, 2014
    When it comes to runways, there are few busier then Brisbane’s main runway. Servicing both domestic and international travel, with over 200,000 movements per year, operating without a curfew Brisbane’s main runway is the busiest in Australia. For maintenance, crews only have a limited period of time to determine the pavement condition, normally during the night, making the detection of pavement faults difficult. To resolve this issue, a new high speed pavement scanner was used to rapidly survey the pavem
    Read More
  • Safer cone collection with X-Cone among the latest safety innovations
    August 30, 2017
    X-Cone is a new traffic cone management system offering a higher level of safety for workers and maximum efficiency for contractors. Austrian-made X-Cone is a truck-mounted system that can manage the setting out and collection of cones from the flatbed of any 3.5tonne vehicle. It does not matter if the cones are straight or laying on the road, the X-cone can still manage the work quickly, safely and reliably, according to the manufacturer. For setting out standard cones, the driver can decide the distance b
    Read More
  • Road markings essential for road safety
    March 16, 2012
    Road markings, along with laying and testing equipment, are all essential to make sure drivers get clear instructions. Patrick Smith reports Road markings are as important as signs, with longitudinal markings informing and warning road users of approaching situations that will require them to take some form of action.
    Read More
  • Noise camera knowledge is far from sound
    February 7, 2025
    Despite the UK public wanting measures to tackle noisy vehicles, knowledge of noise cameras, such as the SoundVue system from Intelligent Instruments, is low, according to a recent poll.
    Read More

Highlighted Content