By A Mystery Man Writer
ERF technical recommendations to adapt CAVs - Road Markings - Reflective Measurement Systems RetroTek
RoadSensors retroreflectometers
Lionel Deimel's Web Log: History by the Side of the Road
Why Are Road Lines So Hard To See In The Rain?
SWARCO Traffic World
The Historical Evolution of Road Markings
Safety Evaluation of STOP AHEAD Pavement Markings - FHWA-HRT-08-045
What is the history of road markings? - Road Marking Services
Centerline: The Surprising History of Lane Markings
Complete crossroads with Different type of road markings.
Who's Responsible for UK Road Markings?
RoadSensors retroreflectometers
Intersections: Pavement Markings
The Untold Story of the Highway Code – The Historic England Blog
Glow in the dark roads not glowing - BBC News