, 3 tweets, 2 min read Read on Twitter
Today's @GoogleDoodles celebrates tactile paving: an innovation that transformed the way those who are visually impaired navigate.

In 1967, 52 yrs ago today, the 1st tactile paving was laid near Okayama School for the Blind in Japan.

Since they've been adopted across the globe.
In 1965, to help a friend whose vision was becoming impaired, Seiichi Miyake spent his own money to invent tactile paving to ease navigation of public spaces for those w/ #visualimpairments.

Tactile tiles spread rapidly after their widespread adoption by Japan National Railways.
What do the different tactile paving types mean?🛣

Raised dots aligned: drop curb crossing
Raised dots offset: mind the gap
Lozenge: on street platform edge (eg team)
Lots thin raised lines: hazard (eg steps)
Thicker spaced out raised lines: cycle way
Long thick lozenge:
guiding
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