I believe it’s unified :)
Answer:
Traffic jams, tailgaters, traffic restrictions, and slow-moving vehicles are examples of incidents and interactions that can cause <u>anger</u> by drivers on the roadway.
Explanation:
The listed situations are just some of the unpleasant situations drivers may find themselves in. Traffic jams and slow-moving vehicles mean more commuting time to work or school. Along with tailgaters and traffic restrictions, they increase the level of stress, as we usually want to get somewhere as fast as possible. In such situations, we are not likely to start reflecting, but get angry.
A scene can mean two things. A scene can be the setting of a story, or (what I think you are referring to) it can be a segment of an Act of a play. A scene separation within a play is usually included in order to allow time for a change in setting during the performance. A chapter is a segment of a book. So, to summarize, a scene is a segment of a play and a chapter is a segment of a book.