The attached diagram can be referred to as a straight line diagram. You could produce that a number of different ways.
One way to produce a straight line diagram like that would be to use data driven pages in arcmap. Draw a straight line. Make route events along the straight line and offset them. Trick the data driven pages into looking at the straight line as each route section as desired per page, and refer the events along the route from a percentage of the whole route to a unit percentage of the straight line. I dont think you need to union the events or combine them to do this.