🚀 go-pugleaf

In article <MNP.94May11144351@procyon.tibu>, mnp@clsi.COM (Mitchell N.
Perilstein) wrote:

> On straight interstates (two digits, eg, I95) the exit number is usually
> the number of miles to the state border at one end of the road.
> 
> 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?

     North-south routes are odd numbered (e.g. I-5, I-57, I-97) from
west to east.  Long routes end in 5.
     East-west routes are even numbered (e.g. I-4, I-80, I-96) from south
to north.  Long routes end in 0.
					The three digit highways start with an odd number if it is a spur,
an even number if it is a loop or bypass.  The last two digits indicate
its associated main interstate (e.g. I-495 is a beltway that has a junction
with I-95. I-380 is a spur off of I-80).  These numbers may repeat from
state 
to state.
-- 
Bill Smith, Scientific Programmer/Analyst, General Sciences Corporation
Internet: w3wes@oswego.gsfc.nasa.gov              Phone: (301) 286-8471
Snail Mail: Code 910.4, Goddard Space Flight Center, Greenbelt, MD 20771