March 17th is Tactile Paving Day! On this day on 1967, the world's first tactical pavings or "Braille blocks" were installed in Okayama!

Good Morning Myon's Trivia Pop Quiz!

Guidance Block

??? Block

Platform-End Line Warning Block

Three types of tactile pavings are depicted above. What word goes in the empty box for the mystery block?

Please choose from the following!

1. Stop 2. Warning 3. Signal