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horizontal
Left to right
they go up and down
Not at all. The nearest one to me is US90. It turns out, though, that the odd-numbered interstates run north-south, while the even-numbered interstates run east-west.
Odd numbers run Noth to south and begin in the West. Thus 25 is West of 35. Even numbers run East to West and begin in the South. Thus 40 is South of 80.
North and south
north to south
West to East or East to West
West to East or East to West
West to East or East to West
The United States Interstate Highway System was designed so that even-numbered routes are east-west highways.
The answer is Interstate highway an U.S.highway
22 runs in an east-west direction. Odd numbered ones run N-S, even run E-W (generally)
I-90 and I-94 are east-west interstate highways in Montana.
interstate highway as u.. highway
West to East or East to West
I-15 is the north-south interstate highway in Montana.