Getting Started
24 Navigation System
Viewing Flow Data
Tra f fi c fl ow data is displayed as colored
bands on either side of the freeway (see
Traffi c Display Legend on page 22 ).
The different colored bands represent
the average road speeds as determined
by under-road sensors and other probes.
While driving to your destination on
a road that has traffi c fl ow data, your
route line color is used to display the
traffi c fl ow data. This means that
when the map scale is set to one of
the traffi c scales (1/20 through 5 mile
scale), your blue route line may appear
as alternating orange, red, or green
segments (see Traffi c Display Legend
on page 22 ).
NOTE:
A blue route line segment on a freeway
can mean one of two things:
• Under-road sensors, GPS probes, cell phone probes, and other
methods used to collect traffi c speed
information indicate free-fl ow traffi c.
• The road has no sensors, and traffi c
conditions are unknown (they could
be congested). Naturally, only roads with these sensors
will show traffi
c information. The
amount of fl ow data varies considerably
from one city to another. This map
display is refreshed continuously.
You can only view traffi c information
from within 200 miles of the vehicle’s
location.
NOTE:
• Traffi c fl ow and incident icons are displayed on the 5 miles (8 km) or
less map scale.
• Not all freeways within a metropolitan area have traffi c fl ow
data (colored bands on the side of
the freeways) - this is normal, and
you cannot assume that a lack of
data implies no traffi c.
• Not all cities have traffi c fl ow information. See cities listed on page
15 0 .
• Due to freeway maintenance and construction, traffi c fl ow may be
available only for one side of a
road, or be missing entirely for some
portion of the freeway. • The displayed traffi c fl ow may
confl ict with other audio- or Internet-
based traffi c information.
• If traffi c fl ow is not showing, verify that the “TRAFFIC” selection for
the Icon Bar is ON, and that the icon
options for traffi c are both ON (see
page 63 ).
Getting Started
Navigation System25
Viewing Incident Reports
Incident reports appear as small
diamond- or circle-shaped icons (see
Traffi c Display Legend on page 22 for
examples). There are four ways to view
traffi c incidents:
• By voice control, say “Display traffi c
incidents.”
• Select “Traffi c Incidents” from the
Map menu .
• Select “Traffi c Incidents” on the
INFO screen ( Main Info ).
• Select an incident icon from the map
screen.
NOTE:
The fi rst method is recommended
because it works on any scale and
requires the minimum input. Listing Traffi
c I
ncidents by Voice
Control
From the map screen (any scale), say
“Display traffi c incidents” or “Display
traffi c list.” The Traf c Incidents
screen will be displayed, which includes
the “All” and “On Route” tabs.
When you select the “All” tab, a list
of all incidents within 200 miles from
the vehicle’s location will be displayed.
When you select the “On Route” tab, a
list of all incidents on the current route
within 200 miles from the vehicle’s
location will be displayed.
Incidents are listed by distance from
your current position outward in all
directions. To view incident details, say the
number of the incident you want to
select. A map showing the location of
the incident will be displayed, and the
message will be read to you.
NOTE:
The “On Route” tab can be selected
only when you are en route.