{"id":4209,"date":"2020-07-28T13:38:25","date_gmt":"2020-07-28T11:38:25","guid":{"rendered":"https:\/\/www.traffic-data-systems.net\/produkte\/optische-messgeraete\/fahrbahnmarkierung\/"},"modified":"2023-09-13T17:52:16","modified_gmt":"2023-09-13T15:52:16","slug":"measuring-instruments-for-road-markings","status":"publish","type":"page","link":"https:\/\/www.traffic-data-systems.net\/en\/products\/optical-instruments\/measuring-instruments-for-road-markings\/","title":{"rendered":"Measuring instruments for road markings"},"content":{"rendered":"\n

Portable retroreflectometers<\/a>
Dynamic retroreflectometer LTL-M<\/a>
Thickness gauges<\/a>
Test kit<\/a>
Skid Resistance Tester (SRT)<\/a><\/p>\n\n\n\n

Portable retroreflectometers<\/h2>\n\n\n\n

Road markings are traffic signs according to \u00a7 41 Para. 3 and \u00a7 42 Para. 6 StVO (German Road Traffic Regulations) and Section 2 of the ‘Guidelines for Road Marking, Part 1\u2019 (RMS-1). In darkness, markings, particularly on open sections of road, have an important guiding function, as road users have no other means of orientation to call upon.<\/p>\n\n\n\n

Road markings are subject to different external influences which lead to a degradation of their traffic-related properties. For decades DELTA has been the world\u2019s leading manufacturer of portable and dynamic systems for the precise and rapid measurement of daytime (Qd) and night-time visibility (RL<\/sub>) and contrast.<\/p>\n\n\n\n

We offer various measuring systems for measuring the photometric properties of markings statically and dynamically, all of which can be configured to suit the individual customer.<\/p>\n\n\n\n

Test institutions, highway construction authorities and marketing companies require different measuring instruments for testing traffic-related properties, and TDS offers these in the form of a test kit to meet customers\u2019 individual requirements. A mechanical and a digital marking thickness gauge are available for measuring the layer thickness of dry markings (with and without reflective beads). <\/p>\n\n\n\n

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LTL 3500<\/h2>\n<\/div>\n\n\n\n
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\"\"<\/figure>\n<\/div>\n<\/div>\n\n\n\n

The LTL 3500 introduced at the end of 2020 is the flagship of the lane marking retroreflectometers. It is an extremely compact instrument for measuring the night-time visibility (RL<\/sub>) and, optionally, the daytime visibility (Qd) of road markings. Measurements can be taken both in the daytime and at night on dry and wet markings. The night-time visibility can also be measured in continuous rain.<\/p>\n\n\n\n

The LTL 3500 optionally fulfils the requirements of DIN EN 1436 or ASTM E 1710. The scope of supply includes a calibration stand (RL) and, optionally, a calibration reference (Qd) from DELTA\u2019s photometry calibration laboratory, which is accredited by DANAK. The following extras are available as an option:<\/p>\n\n\n\n

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  • Qd function<\/li>\n\n\n\n
  • Night colour module (x,y coordinates for white and yellow)<\/li>\n\n\n\n
  • GNSS module (Global Navigation Satellite System)<\/li>\n\n\n\n
  • Macro and overview camera<\/li>\n\n\n\n
  • Compass and inclinometer<\/li>\n\n\n\n
  • External printer<\/li>\n<\/ul>\n\n\n\n

    The LTL 3500 is factory-equipped with all the hardware and software modules listed above, which can also be subsequently activated online in a few minutes (e.g. camera, GNSS module, etc.).<\/p>\n\n\n\n

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    \"LTL<\/figure>\n<\/div>\n\n\n\n
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    LTL 3000<\/h2>\n<\/div>\n<\/div>\n\n\n\n

    The LTL 3000 retroreflectometer is the latest generation. It is a highly compact instrument for measuring the night-time visibility (RL<\/sub>) and, optionally, the daytime visibility (Qd) of road markings. Measurements can be taken both in the daytime and at night on dry and wet markings.<\/p>\n\n\n\n

    The LTL 3000 optionally fulfils the requirements of DIN EN 1436 or ASTM E 1710. The scope of supply includes a calibration stand (RL) and a calibration reference (Qd) from DELTA\u2019s photometry calibration laboratory, which is accredited by DANAK. The following extras are available as an option:<\/p>\n\n\n\n

      \n
    • Qd function<\/li>\n\n\n\n
    • Night colour module (x,y coordinates for white and yellow)<\/li>\n\n\n\n
    • GNSS module (Global Navigation Satellite System)<\/li>\n<\/ul>\n\n\n\n
      Technical specifications<\/th>LTL 3500<\/th>LTL 3000<\/th><\/tr><\/thead>
      Measuring nighttime visibility dry and wet (RL\/RW) underneath the system<\/td>\"\"<\/td>\"\"<\/td><\/tr>
      Measuring nighttime visibility dry and wet (RL\/RW) in front of the system<\/td>\"\"<\/td>–<\/td><\/tr>
      Measuring daytime visibility (Qd)<\/td>optional<\/td>optional<\/td><\/tr>
      Retractbale handle<\/td>\"\"<\/td>–<\/td><\/tr>
      Night colour coordinates (x, y)<\/td>optional<\/td>optional<\/td><\/tr>
      GPS\/GNSS module<\/td>optional<\/td>optional<\/td><\/tr>
      Macro camera<\/td>optional<\/td>–<\/td><\/tr>
      Overview camera<\/td>optional<\/td>–<\/td><\/tr>
      Compass and inclinometer<\/td>optional<\/td>–<\/td><\/tr>
      Printer (internal)<\/td>–<\/td>–<\/td><\/tr>
      Printer (external)<\/td>optional<\/td>–<\/td><\/tr>
      Set of wheels<\/td>–<\/td>–<\/td><\/tr>
      Colour touch LED display with 3 buttons<\/td>\"\"<\/td>\"\"<\/td><\/tr>
      Straylight compensation<\/td>\"\"<\/td>\"\"<\/td><\/tr>
      Input user ID and road<\/td>\"\"<\/td>\"\"<\/td><\/tr>
      Multi language menue<\/td>\"\"<\/td>\"\"<\/td><\/tr>
      One-hand operation<\/td>\"\"<\/td>\"\"<\/td><\/tr>
      Suitable for flat and profiled (\u226415 mm) markings and agglomerates<\/td>\"\"<\/td>\"\"<\/td><\/tr>
      Suitable for white and yellow markings<\/td>\"\"<\/td>\"\"<\/td><\/tr>
      Measuring time RL and Qd<\/td>< 1 sec.<\/td>< 1 sec.<\/td><\/tr>
      Measuring time RL<\/td>–<\/td>–<\/td><\/tr>
      Documentation of date, time, temperature and humidity<\/td>\"\"<\/td>\"\"<\/td><\/tr>
      Dimension measruing field in mm (length\/width)<\/td>180\/50<\/td>180\/50<\/td><\/tr>
      Illumination angle RL according to DIN EN 1436<\/td>1.24\u00b0<\/td>1.24\u00b0<\/td><\/tr>
      Observation angle according to DIN EN 1436<\/td>2.29\u00b0<\/td>2.29\u00b0<\/td><\/tr>
      Light sources<\/td>LED<\/td>LED<\/td><\/tr>
      Illumination angle Qd<\/td>diffuse<\/td>diffuse<\/td><\/tr>
      Illumination angular spread (hor.\/vert.)<\/td>0.33\u00b0\/0.17\u00b0<\/td>0.33\u00b0\/0.17\u00b0<\/td><\/tr>
      Observation angular spread<\/td>\u00b10.17\u00b0<\/td>\u00b10.17\u00b0<\/td><\/tr>
      Equivalent observations distance<\/td>30 m<\/td>30 m<\/td><\/tr>
      RL range<\/td>0-4000 mcd\u00b7m-2\u00b7lx-1<\/td>0-4000 mcd\u00b7m-2\u00b7lx-1<\/td><\/tr>
      Qd range<\/td>0-318 mcd\u00b7m-2\u00b7lx-1<\/td>0-318 mcd\u00b7m-2\u00b7lx-1<\/td><\/tr>
      Typical repeatability<\/td>\u00b12 %<\/td>\u00b12 %<\/td><\/tr>
      Typical reproducibility<\/td>\u00b15 %<\/td>\u00b15 %<\/td><\/tr>
      Temperature range<\/td>0 \u00b0C to +60 \u00b0C<\/td>0 \u00b0C to +60 \u00b0C<\/td><\/tr>
      Relative humidity<\/td>20-85 %, noncondensing<\/td>< 85 %, noncondensing<\/td><\/tr>
      Capacity measurement memory<\/td>> 1 Mio.<\/td>> 1 Mio.<\/td><\/tr>
      Interface (USB 2.0)<\/td>USB memory stick, WiFi, IOT in preparation<\/td>USB memory stick<\/td><\/tr>
      Data xxport<\/td>Excel format<\/td>Excel format<\/td><\/tr>
      RL calibration standard supplied by accredited laboratory for photometry (DANAK)<\/td>\"\"<\/td>\"\"<\/td><\/tr>
      Qd calibration reference supplied by accredited laboratory for photometry (DANAK)<\/td>\"\"<\/td>\"\"<\/td><\/tr>
      Charger and battery<\/td>\"\"<\/td>\"\"<\/td><\/tr>
      Charging time (battery)<\/td>75 minutes<\/td>45 minutes<\/td><\/tr>
      Dimensions in mm (l\/w\/h)<\/td>470 x 150 x 280<\/td>420 x 150 x 300<\/td><\/tr>
      Weight in kg<\/td>5.6<\/td>4.7<\/td><\/tr>
      Carrying case<\/td>\"\"<\/td>\"\"<\/td><\/tr><\/tbody><\/table>
      Subject to technical changes. Special solutions for individual projects possible.<\/figcaption><\/figure>\n\n\n\n

      Using the calibration stand included with the unit, the user can check the measuring accuracy himself at any time. The instrument is supplied in a stable carrying case. <\/p>\n\n\n\n

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      Dynamic retroreflectometer LTL-M<\/h2>\n<\/div>\n\n\n\n
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      \"Optische<\/figure>\n<\/div>\n<\/div>\n\n\n\n

      The night-time visibility of markings is measured dynamically with the LTL-M. With the unit mounted on the side of the vehicle, measurements are made continuously in flowing traffic without the need for additional safeguarding or impeding other road users.<\/p>\n\n\n\n

      The LTL-M has been developed for professional use and is deployed throughout the world. The sensor technology used ensures that external influences (road irregularities, ruts, expansion joints, acceleration, braking etc.) are automatically detected and compensated for during measurement, thus maintaining the required measuring geometry at all times, which ensures high data accuracy.<\/p>\n\n\n\n

      The system fulfils the requirements of DIN EN 1436 and ASTM-E 1710 and measures the night-time visibility of markings and the contrast in daylight. It also measures the line geometry and missing or defective reflectorised raised pavement markers (RRPMs). The measurements are typically carried out in a speed range of 50 km\/h to 120 km\/h, whereby the photometric properties of the whole marking are documented and not just parts. The system measuring error is typically \u00b15% based on the values measured with DELTA portable reflectometers.<\/p>\n\n\n\n

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      The system can be calibrated and the light source changed quickly and straightforwardly on site. The unit is equipped with a precision GPS and can also be supplied with an overview camera and a distance measuring instrument (DMI) as an option. The driver is able to interrupted the measuring process and\/or mark measurements as required.<\/p>\n<\/div>\n\n\n\n

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      \"\"<\/figure>\n<\/div>\n<\/div>\n\n\n\n

      The instrument\u2019s standards are calibrated in DELTA\u2019s photometry calibration laboratory, which is accredited by DANAK, and enables tracking in accordance with the requirements of the PTB (Physikalisch-Technische Bundesanstalt, Germany) and the NIST (National Institute of Standards and Technology, USA).<\/p>\n\n\n\n