Patt Morrison Hails The Lane Marker, affectionately known in California as "Botz Dots." The reflective plastic disks were invented in the 1950's by state engineer Elbert D. Botz. It's estimated that 25 million "dots" are glued to California's freeways. They've saved many lives by warning drivers who wander out of their lanes, but officials are looking for a newer and cheaper alternative.
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Patt Morrison Hails The Lane Marker,

Only Available in Archive Formats.
Patt Morrison Hails The Lane Marker,

Patt Morrison Hails The Lane Marker,

Patt Morrison Hails The Lane Marker,

Only Available in Archive Formats.

affectionately known in California as "Botz Dots." The reflective plastic disks were invented in the 1950's by state engineer Elbert D. Botz. It's estimated that 25 million "dots" are glued to California's freeways. They've saved many lives by warning drivers who wander out of their lanes, but officials are looking for a newer and cheaper alternative.