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Navigation System
7
Introduction
Verified streets (dark colored)
Unverified streets (light colored)
When
displayed
These roads are found within
metropolitan areas, and
include interstate fr
eeways and major roads
connecting cities.
These roads are found in rura
l areas, and typically include
residential streets away fr
om the center of a town.
Street color
Shown on daytime map
screen as black or red, such as
interstate freeways.
Shown on the daytime
map screen as light brown.
Map quality
The database vendor has verified these streets.
Information like turn restrictions, average speed, and
whether it is a one-way str
eet have been gathered and
used when creating your
route to a destination.
These streets have not been verifi
ed by the database vendor. The
system does not contain information on one-way streets, turn
restrictions, or the road’s aver
age speed. They are shown on the
map for reference and may have errors in map location, naming,
and address range.
Routing
differences
While driving to your destination, the displayed route
line is solid blue. The system provides voice and map
guidance to your destination.
Your route line is either a blue
dotted “vector line,” or a dashed
pink/blue line. For information on selecting this option, and the
routing differences, see
Unverified Area Routing
on page 84.
Cautions
There are no pop-up boxes urging extra caution during
a route. However, because
roads constantly change,
you are urged to use common sense, and always obey
posted traffic restrictions.
Regardless of whether the user ch
ooses route guidance, there are
cautionary screens before and durin
g the route urging the user to
be extra cautious, and obey a
ll traffic restrictions. See
Unverified
Area Routing on page 84.
Guidance
voice
Voice guidance issues instruc
tions such as “In a half-
mile, make a right turn.”
The phrase “if possible” is adde
d to each guidance
instruction.
For example: “In a half-mile, ma
ke a right turn, if possible.”
Time and
distance
“to go”
The time and distance “to go,” displayed while en
route to a destination, is
based on the average speed
and distance for the road
s used for your route.
Because the average speed of thes
e roads is not k
nown, the time
and distance “to go” is based on a fixed average speed of 25 mph
for these roads.
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