Thank you, Bill!

I actually wanted to know that.  I'm not even being sarcastic.  I was trying
to explain this numbering system stuff to a French friend a while ago, and I
didn't have the details right, which bugged me.  It all seems rather clever
to me.

And I think it's quite reasonably vanagon-related, after all I mostly drive
those roads in my van.

Joy

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Joy Hecht
now living in a real house in northern Virginia
and Matilda, 1989 Burgundy Vanagon
now living in the driveway and resting after two and a half years
lugging Joy and her stuff around...

For musings about life traveling in the van or living in one place:
http://www.joyhecht.net

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� 

:::-----Original Message-----
:::From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
:::Of Bill Glenn
:::Sent: Friday, April 20, 2007 10:40 AM
:::To: vanagon@GERRY.VANAGON.COM
:::Subject: HIghway Numbering System NVC
:::
:::Fellas, there's a good reason there's no U.S. Highway 1 in California
:::(but
:::there is a U.S. 101):
:::U.S. highway north-south routes have odd numbers, with numbers increasing
:::from east to west.
:::U.S. highway east-west routes have even numbers, with numbers increasing
:::from north to south.
:::U.S. highway east-west routes ending in 0 tend to be cross-country
:::routes.
:::Three-digit U.S. routes contain the two digits of their parents routes,
:::but
:::there is not an odd and even number system.
:::
:::And while on the subject:
:::Interstate north-south routes have odd numbers, with numbers increasing
:::from west to east.
:::Interstate east-west routes have even numbers, with numbers increasing
:::from
:::south to north.
:::Interstate highway routes have one- or two- digit numbers.
:::North-south interstates ending with a 5 and east-west interstates ending
:::with a 0 are typically major cross-country routes.
:::A three-digit interstate always ends with the two-digit number of the
:::main
:::interstate it loops off from, except I-238.
:::Three-digit road numbers beginning with an even number are either
:::beltways
:::that go around a city or freeways that go through a city.
:::Three-digit road numbers beginning with an odd number branch off the main
:::interstate.
:::
:::Now back to the regularly scheduled Vanagon programming...