All correct as far as I remember with many, many little exceptions. I used
to build them and the numbers also tell you who's paying what percentage,
usually at least.

Mike

On 4/20/07 7:40 AM, "Bill Glenn" <idahobill@GMAIL.COM> wrote:

> 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...