Acura 2011 MDX Navigation System Owner's Manual page 7

These roads are found within metropolitan areas, and
When
include interstate freeways and major roads connecting
displayed
cities.
Shown as red (freeways), pink (state routes), or gray
Street color
(verified streets) on the daytime map screen.
The database vendor has verified these streets.
Information like turn restrictions, average speed, and
Map quality whether it is a one-way street have been gathered and
used when creating your route to a destination.
While driving to your destination, the displayed route
Routing line is solid blue. The system provides voice and map
differences guidance to your destination.
There are no pop-up boxes urging extra caution during
a route. However, because roads constantly change,
Cautions
you are urged to use common sense, and always obey
posted traffic restrictions.
Guidance Voice guidance issues instructions such as "In a half-
voice mile, make a right turn."
Time and The time and distance "to go," displayed while en route
distance to a destination, is based on the average speed and
"to go" distance for the roads used for your route.
Verified streets
2011 MDX
Unverified streets
These roads are found in rural areas, and typically include
residential streets away from the center of a town.
Shown on the daytime map screen as purple.
These streets have not been verified by the database vendor.
The system does not contain information on one-way streets,
turn restrictions, or the road's average speed. They are shown
on the map for reference and may have errors in map location,
naming, and address range.
Your route line is either a purple 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 106.
Regardless of whether the user chooses route guidance, there
are cautionary screens before and during the route urging the
user to be extra cautious, and obey all traffic restrictions. See
Unverified Area Routing on page 106.
The phrase "if possible" is added to each guidance instruction.
For example: "In a half-mile, make a right turn, if possible."
The time and distance "to go," displayed while en route to a
destination, is based on the average speed and distance for the
roads used for your route.
Introduction
Navigation System 7