Ch. 2 · 第3節 横断の仕方
A flashing green pedestrian signal has the same meaning as a yellow signal, so there is no problem starting to cross after it begins flashing.
[True / False · Medium]
Answer: False
Explanation
The Rules of the Road states that a flashing green pedestrian signal has the same meaning as a yellow signal, and that you must not begin crossing when the green light begins flashing. Flashing means "prepare to stop," so starting to cross is prohibited.
Source: Ch. 2 · Section (第3節 横断の仕方) · 第3節 横断の仕方
See the glossary for definitions of key terms.