The key point in making an expository essay is to make sure that you are able to convey the message to the readers in a clear and concise manner; and arranging it systematically is one of the ways to guarantee that the delivery of the information is clear. It comes inside from yourself. Example: Slipping on ice is a common cause of injury in the winter.
This can decrease congestions in the cabin as well as provide a more comfortable ride for restless and weary commuters.