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Course for Ticket Dismissal and Insurance Discount
Trip
Planning and Road Navigation
Many motorists
think they know how to read the numbers, but they
may understand only part of the story. Other motorists
are confused by the numbers; still others have
never really thought about it.
Even
numbered interstates (1 to 2 digits) are east-west
routes. They go from I-10 in the south to
I-94 in the north.
Odd
numbered interstates (1 to 2 digits) are north-south
routes. They start with I-5 on the West Coast
to I-95 on the East Coast.
3 digit
numbered interstate highways connect major highways.
If the first digit is an odd number this usually
represents
a "spur" route heading from an interstate
to a destination, such as a city center.
An even number means the highway connects to
a interstate at both ends (typically a "beltway"
or loop).