AASHTO TP 130-18 (2020) PDF Download
Standard EN
Standard Method of Test for Producing Draw Down Panels and Measuring the Coefficient of Retroreflected Luminance (RL) of Pavement Markings in a Laboratory Panel
Also Known As:
AASHTO TP 130-18 (2020) is a standard method used in laboratories to produce draw down panels and measure the coefficient of retroreflected luminance (RL) of pavement markings. The purpose of this standard is to provide a controlled and repeatable method for testing the retroreflectivity of pavement markings, specifically M 247 Type I highway beads.
The standard outlines the procedure for creating draw down panels, which involves applying a uniform thickness of paint on a suitable substrate. Once the paint is applied, M 247 Type I highway beads are dropped onto the panel in a controlled manner. The retroreflectivity of the pavement markings is then measured using a reflectometer.
The reflectometer is used to measure the coefficient of retroreflected luminance (RL) of the pavement markings. This measurement provides an indication of the visibility and reflectivity of the markings under different lighting conditions.
| ICS Codes | 93.080 - Road engineering |
| Language(s) | English |
| File Size | 1.2 MB |
