Each of the 3 patterns should be 2 inches wide by 24 inches long. Additionally:
A) The pattern should align with itself at the ends, meaning that if you layed it end-to-end with a copy of itself, it should look continuous.
B) The bleed pattern on the opposite sides should be the same
For example (although it’s not drawn very well) I’ve sketched out a simple train track in the photo attached. You can see that:
A) the left and right ends of the pattern (at 0 and 24 inches) should seem continuous if this pattern were repeated, and
B) the train track has two switches (turnouts) that go in opposite directions. On the top and bottom of the pattern in this photo, the point at which the track leaves the edge of the paper (around 16.5 and 18 inches in the sketch) is the same on both sides of the paper. So, for example, if you drew a tree or bush that went off the edge of the side, that same color should be within the bleed area of the opposite side so that when these are printed next to each other, if the die line is off there won’t be an abrupt edge to the pattern.
It would be nice if the colors on the 3 patterns were not the same (e.g. maybe the garden path takes advantage of different brighter colors than the highway).
This will be a toy sold in the United States, so anything country-specific should be geared towards a US audience.