Answer:
This glossary of Course terms, written by Robert Perry, attempts to clarify the special meaning the Course gives familiar words like God, forgiveness, and miracle. Where applicable, it sets the Course’s meaning alongside the conventional definition and/or the traditional Christian usage. This glossary is keyed to the FIP edition of the Course.
I think it’s only 2 but I’m not completely sure
For statement 1. It is a positive to an extent. Stop sighs can often be covered in graffiti, which can began to cost more and more every time you repaint them. For statement 2 and 3. Traffic signals would cause less accidents because of the fact that they “force” you to stop, they give every car a chance to go, and give pedestrians the right of way to walk as well.