CRAPTS uses high performance Zehntner Retroreflectometer to monitor road marking & signages for 1400 kms at various locations in Odisha
Posted by: Stanlay India
Application requirement:

CRAPTS required to utilize a high-performance instrument to monitor the performance of road marking & road signages for 1400 kms at various locations in Odisha as per the assigned contract, for ensuring road safety for drivers. In addition, Pre-commissioning tests of road after construction, for road safety.

CRAPTS conducts testing for road signages and road markings for road safety and also provide training services to professionals. CRAPTS was awarded a contract for road safety testing, for 1400 kms of road markings and road signages for the state of Odisha across various locations.


Public Works Department, Odisha
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CRAPTS opted for the highest quality instruments by Zehntner ( A Proceq company) , made in Switzerland to ensure that they deliver the highest quality measurements and reporting.

  1. The advanced ZRM6014 RL Retroreflectometer , manufactured by Zehntner by Proceq, for pavement markings with GPS.
  2. Zehntner by Proceq, ZRS6060  Retroreflectometer for road signages with GPS.


Road Marking ensure road safety by directing & guiding drivers on the road . Road markings can be based on as example thermoplastic paints, water or solvent borne road marking paints, which have a life depending on a variety of factors.

Reflective road markings are embedded with an optimal level of glass beads for ensuring retroreflection from the vehicles headlights. The reflectance from the road markings degrade over time.


Retroreflectometer for Pavement Marking

The ability of a driver to view the markings, while driving at speed, from a distance, whether in day or night, dry or wet, can ensure avoidance of accidents.

A retroreflectometer is used to measure the retroreflection performance of the surface.

Visibility in the daylight of the road paint is referred to as“Qd” i.e luminance coefficient under diffused illumination.

Night time visibility is referred to as “RL” i.e Retro reflection

Retro reflectometers work in accordance with EN 1436 ,

  • ASTM E 1710 (RL) ,
  • ASTM E 2302 (Qd)
  • and ASTM E 2177 (RL wet) .

 and Measure of Day & Night Visibility of Road markings (or signages) with Retroreflectometry.

CRAPTS finds the Zhentner Retroreflectometer very handy to operate (1-person Job), provides ultrafast test measurements allow an operator to test long length road stretches in very less time

Zhentner Retro reflectometer for pavement and road marking

Enabled with 5.7” high-resolution color touchscreen, The retroreflectometer offers excellent visibility under all light conditions. The retroreflectometer logs all measurements with precise geolocation & provides comprehensive reports quickly with the help of user-friendly reporting software at ease.

 Zhnetner Retro Reflectometer Measurement Output