Registered: 07/11/10
Posts: 1680
Loc: New Port Richey, Fla
beltways on interstate numbered highways that go around metropolitan areas have 3 digit numbers with the last two of the originating highway... an even number prefix indicates that it will rejoin the originating highway on the other side... an odd number prefix is that it is a spur road, and will be radial to the metropolitan area and typically terminate there... at least that is the way the original roads are supposed to be numbered...
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