They are the raised reflectos that are on the white lines on the highway.
Botts' Dots are named after their inventor, Elbert Botts, a chemist who worked for Caltrans in the 1950s because painting the lines every year was very expensive and dangerous.
Botts' Dots are named after their inventor, Elbert Botts, a chemist who worked for Caltrans in the 1950s because painting the lines every year was very expensive and dangerous.
by zookeeper January 23, 2005