Technical reports

DELTA has pioneered the work on road safety since the 60'ties and has been a very active part in writing the current CEN EN standards on measuring retroreflection from pavements and road signs as well as having participated in writing the similar US ASTM standards.

• RS100 Work on reflection properties of road surfaces, road markings and road signs at DELTA

• RS101 Reflection and retroreflection

• RS102 Measurement of reflection and retroreflection

• RS103 What to know about portable retrometers for pavement markings

• RS104 Portable retroreflectometers and structured pavement markings

• RS105 Road markings: Choose the right type of retroreflectometer

• RS106 Point and annular sign retroreflectometers for measuring retroreflective signs