I was not able to get to the full article, but I hope this helps your question.
The textual evidence which I can use to choose the text structure the author used to write the passage is:
"In January 2013, the four-week school bus drivers’ strike in New York City affected many people, especially students with serious disabilities. These children weren’t able to get to school without buses."
The text structure used is cause and effect.
The reason the author chose this text structure to organize and present information about the topic is to show the effect of the bus strike on both the disabled school kids and their contract therapists.
