ASTM E1710 Retroreflective Pavement Marking Materials with CEN-Prescribed Geometry

Get Certified ASTM E1710 Testing for Reliable Pavement Marking Performance

Poor retroreflectivity can reduce the visibility of pavement markings, particularly at night and in low light, and may affect road safety. ASTM E1710 helps manufacturers and road-marking professionals measure the retroreflective properties of pavement marking materials using CEN-prescribed geometry. The test supports material selection, product development, quality control, and performance verification while helping ensure consistent visibility of pavement markings. For more information about ASTM E1710 testing, consult Matestlab Inc.

• Helps assess nighttime visibility.
• Evaluates retroreflective performance of pavement markings.
• Employs a portable retroreflectometer to measure retroreflection.
• Measures the retroreflective properties of horizontal pavement marking materials.
• Restricts to marking materials containing retroreflective glass beads.
• Compliance with road safety standards.
• Ensures uniformity of pavement markings.

What are the Uses of ASTM E1710?

Transportation, civil engineering, and road safety professionals use ASTM E1710 to measure the retroreflective characteristics of pavement markings, ensure their visibility to drivers, and perform quality checks on retroreflective materials used in pavement marking tapes and paints. ASTM E1710 standard-

• Evaluates retroreflectivity of pavement marking materials. 
• Assesses nighttime visibility. 
• Supports quality control and development of new retroreflective materials. 
• Compares the retroreflective performance of different materials.
• Provides performance data for Road safety assessment
• Helps verify whether pavement markings meet specified retroreflectivity requirements.

Which materials can be tested under ASTM E1710?

Retroreflective pavement marking materials are generally evaluated under ASTM E1710. The test measures the coefficient of retroreflected luminance (R_L). R_L helps determine how effectively the pavement marking reflects light toward the vehicle or observer. This standard tests materials including thermoplastic road markings, solvent-based paints, waterborne paints, retroreflective tapes, and other pavement marking paints containing retroreflective elements to ensure they can return vehicle headlight light, improve road visibility at night, and meet regulatory standards for reflectivity, durability, and performance in all road settings. Glass-bead-containing pavement markings use glass beads to provide retroreflectivity. Thermoplastic pavement markings are tested for road and highway markings. 

Why is ASTM E1710 important?

ASTM E1710 is important because it provides a reliable and standardized method for evaluating the retroreflective performance of pavement markings. It helps manufacturers and road authorities verify that pavement markings provide adequate visibility to guide drivers under poor lighting conditions, reduce the risk of accidents, and improve nighttime driving safety.

ASTM E1710 Testing Process and Data Collection 

The analyst selects the representative pavement marking areas required for evaluation. Then, technicians ensure the marking surface is clean and dry, standardize the portable retroreflectometer using the appropriate reference standard, and place the instrument squarely over the marking. The retroreflectometer measures the coefficient of retroreflected luminance (R_L) at the prescribed CEN geometry. Analysts record readings at multiple locations, calculate averages, and report results in mcd·m⁻²·lx⁻¹.

Common Challenges and Troubleshooting 

ASTM E1710 test presents challenges in obtaining accurate measurements under varying environmental conditions, including moisture, road texture, and dirt. Improper equipment calibration can produce erroneous results, so technicians must calibrate the retroreflectometer properly, perform frequent measurements, and carefully control testing conditions to ensure reliable results. Consistent measurement conditions and careful adherence to the test procedure are essential for accurate evaluation. MaTestLab follows appropriate testing procedures and equipment to provide reliable ASTM E1710 retroreflective luminance measurements.

• The laboratory reports the measured coefficient of retroreflected luminance (R_L) in millicandela per square meter per lux (mcd·m⁻²·lx⁻¹).
• The laboratory records the retroreflectometer readings obtained at each test location and calculates the average R_L value. For centerline markings, the laboratory reports the average readings separately for each direction of traffic.
• The analyst compares the measured R_L values with the applicable project, customer, or regulatory performance requirements, where specified, to determine whether the pavement marking meets the required retroreflective performance. 
• Higher R_L values indicate higher visual performance under the specified illumination and viewing conditions, whereas lower values imply the markings need replacement. 

Link to ASTM E1710