Horizontal pavement marking retroreflectometer LTL-M

night visibilityhandheldroad sign

Mobile retroreflectometer for road markings Modern, easy-to-use retroreflectometer provides full coverage at normal traffic speed – day or night. High performance of even challenging targets Measure at normal traffic speed day or night and avoid dangerous incidents where an operator must make handheld measurements on a busy road. The LTL-M measures night visibility RL, daylight contrast, marking width, road stud (RRPMs) presence, etc. Measure over 3,000 kilometres in an average working week The 1×1 m2 viewing field makes it easy for a driver to cover a line. Advanced camera-based techniques and real-time digital image processing ensure accurate measurement results in all driving conditions. Fast to mount and calibrate Mount and calibrate the LTL-M in just 15 minutes without other adjustments or control measures. Use the GPS to determine precisely where specific measurements have been performed. The overhead camera supports additional visual inspection of problem areas when reviewing automatically stored data. Performance matches handheld retroreflective measurements The system performance is high, with a repeatability of typically +/-3% and a reproducibility of +/-5% compared to handheld, static measurements.