Spinning in Place

Below is an excerpt from one of the chapters in my book.

Spinning in Place

Before the invention of traffic signals, the flow of cars through a city was chaotic. As the automobile increased in presence in the early 1900s, it drove alongside horse-drawn carriages, trollies, and pedestrians, all vying for passage through the snarled streets. People depended on the police officers in a busy intersection to guide traffic smoothly, and on everyone knowing the right-of-way laws. This r...