🚀 go-pugleaf

In article <2qt8ce$mbk@news1.digex.net> mikej@access2.digex.net (Mike Jacobs) writes:
}Mitchell N. Perilstein (mnp@clsi.COM) wrote:
}: There are a whole bunch of nicely consistent things about all the
}: country's interstates and how they're numbered.  I know a few, but does
}: someone have the whole list?
}
}for 1 & 2 digit interstates:
}even numbers run east-west, increasing from south to north
}odd numbers run north-south, increasing from west to east
}
}the hundreds digit:
}even, it's a loop and will eventually return (the beltway)
}odd, it's a spur and won't come back
}
}of course they don't aways work this way:  I270 & I370 are mutants...
}(i've seen on an old map that I270 used to be I70N/S while I70E/W
}continued to baltimore!)

"Even" can be a bypass as well as a loop-- I-370 is correct.  I-270 is
also correct-- it intersects I-70 in Frederick, just before it ends,
and I-495 in Washington DC. It used to be known as I-70S.  I-70
between Baltimore and Frederick was I-70N.



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