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Table of Contents

• Introduction
• Applications of Retroreflectivity to Highway Safety
• What is Retroreflection and How Is It Used?
• Glass Beads for Pavement Markings
• Prismatic Cube-Corner Retroreflection
• Micro-Prismatic Cube Corner Retroreflection
• Quality Assurance of Retroreflectors
• Measuring Retroreflection
• Measurement of Roadway Markings
• Measurement of Road Signs
• Practical Applications of Retroreflectometers
• Learn from the experts
• Photometric Range Goniometer Laboratory
• Retroreflectometers
• Pavement Markings
• Signs and Sheeting Materials
• Raised Pavement Markers
• Proposed Minimum Sign Retroreflectivity Guidelines
• ASTM Standards Dealing with Retroreflection
• References on Light and Color Measurement of Traffic Safety Materials
• Bibliography
• Glossary of Terms
• Appendix