Ch. 1 · 第2節 信号
When the signal ahead turns green at an intersection, if the cross signal is red, it does not necessarily mean that the signal ahead is also green.
[True / False · Hard]
Answer: True
Explanation
The Rules of the Road cautions that even if the cross signal is red, the signal ahead is not necessarily green. For example, there are signals where all directions temporarily turn red, and there are time-delay signals where the time when signals in certain directions turn red is staggered, so you must always check the signal ahead.
Source: Ch. 1 · Section (第2節 信号) · 第2節 信号、標識・標示に従うこと
See the glossary for definitions of key terms.