Labsinus >
ASTM E1710 Measurement of Retroreflective Pavement Marking Materials with CEN-Prescribed Geometry Using a Portable Retroreflectometer
Last updated July 29, 2025
ASTM E1710 Measurement of Retroreflective Pavement Marking Materials with CEN-Prescribed Geometry Using a Portable Retroreflectometer
The visibility of pavement markings plays a crucial role in road safety, especially under nighttime or low-light conditions. ASTM E1710 is a standardized test method developed to measure the retroreflectivity of pavement marking materials using a portable retroreflectometer under CEN-prescribed geometry. This method ensures consistency in evaluating how well pavement markings reflect light from vehicle headlights back to the driver's eyes. The test is especially relevant for white and yellow pavement markings. It aids road agencies and manufacturers in verifying the quality and longevity of road marking materials. Accurate retro reflectivity data helps in timely maintenance and enhances driver safety.
Read More
GET STARTED
ASTM E1710 Introduction
Pavement markings are essential for guiding motorists, especially during nighttime or inclement weather. To maintain high visibility and reflectivity, it is critical to assess the retroreflective properties of these markings. ASTM E1710 offers a reliable and repeatable method for such evaluations by measuring the coefficient of retroreflected luminance (RL) under specified geometric conditions. The method uses a portable retroreflectometer configured to CEN (European Committee for Standardization) geometry, which simulates a headlight at 1.24° observation angle and 88.76° entrance angle, closely mimicking actual driving conditions. The test is non-destructive and can be carried out on-site, allowing for rapid data collection. This ensures that pavement markings maintain visibility throughout their service life, supporting safe navigation and regulatory compliance.
At least 30 cm length of marking material, width matching the road line (e.g., 10–15 cm)
Preparation Requirements
Remove dirt, debris, and moisture before measurement; no traffic during test
ASTM E1710 Test Results and Interpretation
The retroreflectivity values obtained from the portable retroreflectometer are expressed in millicandelas per square meter per lux (mcd/m²/lux). A higher RL value indicates better visibility of pavement markings. Typical acceptable values for white markings are ≥100 mcd/m²/lux, while yellow markings should generally exceed 70 mcd/m²/lux. Readings below these thresholds may suggest wear or degradation, prompting maintenance or reapplication. Consistency in results across different locations along the pavement ensures uniform visibility and effective guidance for drivers.
ASTM E2177 describes a standard test method for measuring the simulated rain condition retroreflectivity of horizontal pavement markings. ASTM E2832 outlines the measurement of the daytime chromaticity of pavement marking materials. ASTM D7585 focuses on performance criteria for retroreflective markings on roadways.
ASTM E1710 Applications in Industry
ASTM E1710 is widely used by transportation agencies, road maintenance contractors, and pavement marking manufacturers. It plays an essential role in road infrastructure assessment, quality control of marking materials, and long-term performance monitoring. Departments of Transportation (DOTs) utilize the method to ensure road safety compliance, especially on highways, urban roads, and airport runways. It is also applied during the procurement and acceptance phases of road projects to verify that materials meet retroreflectivity specifications.
Importance of ASTM E1710 Test Standard
The significance of ASTM E1710 lies in its ability to provide a quantitative, standardized, and portable assessment of retroreflectivity, which directly correlates to road safety. Nighttime driving relies heavily on visible pavement markings, especially for older drivers and in poorly lit areas. This test standard ensures that materials are evaluated under realistic lighting and viewing geometries, improving reliability in visual guidance. Moreover, using a portable retroreflectometer streamlines field measurements, enabling immediate feedback and informed decision-making in maintenance planning and public safety initiatives.