205 Control systems
COMAND navigation system (real-time traffic) (USA only)
The following shows the possible symbol
displays.
1Traffic jam on the route (symbol with
red border)
2Traffic jam away from the route (sym-
bol with gray border)
3Stop and go traffic on the route (sym-
bol with red border)
4Stop and go traffic away from the route
(symbol with gray border)
5Blocked section on the route
6Traffic jam
7Stop and go trafficDisplaying real-time traffic reports
Displaying the message list
Select “Navi” “Traffic”.
COMAND searches for real-time traffic
transmitters. When no traffic reports
are present, you will see a display to
this effect.List for inactive route guidance
When route guidance is inactive, the list
displays all streets for which messages are
present.
1Affected street list
Read a message: Select a street.
You can find an example message on
(
page 206).
Close the list: Slide omp.
iInstead of a street, an area or a region can
also be affected by a message, for example,
when visibility is limited due to fog.
206 Control systems
COMAND navigation system (real-time traffic) (USA only)
List for active route guidance
When route guidance is active, the list dis-
plays only the streets which are part of the
route and for which messages are present.
1Show all messages (including those
which do not affect the route)
2Affected streets (only shown when
messages which affect the route are
present)
Display all messages: Select “Display
All Messages”.
All streets are shown for which mes-
sages are present, as well as for those
which are not on the route.
Read a message: Select a street.
You can find an example message on
(
page 206).
Close the list: Slide omp once or re-
peatedly.
Example message
1Selection display (“Messages On
Route” or “All messages”)
2Symbol for message event (e.g. traffic
jam)
3Street affected by the message
4Message 1 of 5 for the affected street
5Message textThe symbols for the possible message
events are shown in the following.
1Traffic jam symbol
2Stop and go traffic symbol
3Warning message symbol
4Blocked section symbol
Scroll through the contents or to the
next message: Turn ymz or slide
qmr.
207 Control systems
COMAND navigation system (route guidance)
COMAND navigation system (route guidance)
Route guidance
COMAND guides you to the destination us-
ing navigation commands in the form of
audible navigation announcements and
route guidance displays.
If, for any reason, you do not follow the
navigation commands or if you leave the
calculated route, COMAND automatically
calculates a new route to the destination.
If the map data contains the relevant infor-
mation, COMAND tries to avoid roads that
only have limited access, e.g. roads closed
to through-traffic and non-residents.Roads that have time restrictions (e.g.
closed on Sundays and public holidays) are
not considered for route guidance, if the
digital map contains the relevant informa-
tion.
Examples of displays and announce-
ments for a driving maneuver
Driving maneuvers have three phases:
Preparation phase
Announcement phase
Maneuver phase
Warning!G
COMAND calculates the route to the desti-
nation without taking account of the follow-
ing, for example:
Traffic lights
Stop and right-of-way signs
Parking or stopping prohibited areas
Lane merges
Other road and traffic rules and regula-
tions
Narrow bridges
COMAND may give incorrect navigation
commands if the data in the digital map
does not correspond with the actual
road/traffic situation. For example, if the
traffic routing has been changed or the di-
rection of a one-way road has been re-
versed.
For this reason, you must always observe
applicable road and traffic rules and regula-
tions during your journey. Road and traffic
rules and regulations always have priority
over the navigation commands generated by
the system.
iThe route guidance displays can only be
seen if the display is switched to navigation
mode.
208 Control systems
COMAND navigation system (route guidance)
Preparation phase
COMAND prepares you for the upcoming
driving maneuver. Based on the example
display below, the driving maneuver is an-
nounced with the “Prepare to turn left”
message. The display is not split and
shows the map over the full screen.
1Point at which the driving maneuver
takes place (light blue dot)
2Route (highlighted blue)
3Current vehicle position; the triangle
points in the vehicle’s direction of trav-
elAnnouncement phase
COMAND announces the next driving ma-
neuver. Based on the example display be-
low, the driving maneuver is announced
700 feet in advance with the “Turn left in
700 feet to your destination” message.
The display is divided in two. In the left
half, you see the normal map view. In the
right half, there is either an enlarged view
of the area surrounding the intersection
(intersection zoom) or simply a symbol for
the next driving maneuver.
The following example illustration shows
the intersection zoom in the right half.1Next road
2Driving maneuver (turn left)
3Graphical representation of the dis-
tance to the driving maneuver
4Point at which the driving maneuver
takes place (light blue dot, shown in
both the left and right displays)
5Information about distance to the next
driving maneuver
6Route (highlighted in blue; shown in
both the left and right displays)
7Current vehicle position; the triangle in-
dicates the vehicle’s direction of travel
(shown in both the left and right dis-
plays)
8Street on which you are currently driv-
ing, if included on the digital map
9Destination
iThe filled-in section of distance graphic 3
gets shorter the nearer you get to the announced
driving maneuver.
209 Control systems
COMAND navigation system (route guidance)
Maneuver phase
COMAND announces the next driving ma-
neuver. Based on the example display be-
low, the driving maneuver is announced
150 feet in advance with the “Now turn
left” message. The display is also split into
two halves, as for the announcement
phase.
1Graphical representation of the dis-
tance to the next driving maneuver
2Information about distance to the next
driving maneuverExample of a display without driving
maneuvers
1Main destination <
2Stopover = (only visible if a stopover
has been entered)
3Route (highlighted blue)
4Current vehicle position; the triangle in-
dicates the vehicle’s direction of travel
5Set map orientation – for an explana-
tion and settings, see (
page 169)
6Set scale – for an explanation and set-
tings, see (
page 167)Destination or destination area
reached
Once you have reached your destination,
you will hear the announcement “You have
reached the destination”. For certain POIs
(airports or highway junctions), you will
hear the announcement “You have reached
the destination area”. In addition, you will
see a corresponding display and route
guidance is automatically ended.
1Destination on the map
2Destination flag
iOnce the maneuver is completed, COMAND
automatically switches back to the non-split
screen.
210 Control systems
COMAND navigation system (route guidance)
Partially digitized areas If the destination is within a partially
digitized area
COMAND guides you through fully digitized
areas for as long as possible. Route guid-
ance is conducted in the usual manner, i.e.
with navigation announcements and route
guidance displays.
Before the vehicle reaches a partially digi-
tized area, COMAND notifies you of this
with the following announcements:
“Be prepared to enter an area where
turn by turn guidance cannot be provid-
ed.”
“In 700 feet you will enter an area
where turn by turn guidance cannot be
provided.”
“You are about to enter an area where
turn by turn guidance cannot be provid-
ed.”Route guidance within a partially digi-
tized area
If you start route guidance in this type of
area, you will hear the following announce-
ment: “You are currently in an area where
turn by turn guidance cannot be provided.”
Route guidance is provided by means of a
direction arrow showing the compass
heading to the destination. COMAND will
not generate automatic navigation an-
nouncements.
If you try to call up an announcement man-
ually, (page 213) you will hear the an-
nouncement “You are currently in an area
where turn by turn guidance cannot be pro-
vided.”.
iThe digital map may contain areas that are
only partially digitized although they are within a
digitized region.
Warning!G
Due to incomplete digitization, the route
shown on the map may differ from the actual
road/traffic situation.
If you follow the route shown on the map, for
example, it is possible that you could drive
the wrong way down a one-way street or
that a street cannot be driven on.
When using route guidance in a partially dig-
itized area, you must therefore be sure to
observe all relevant traffic regulations and
the course of the road.
All relevant traffic regulations and the
course of the road always take priority over
the route shown on the map.
iThe indicated distance can be seen here by
way of example. In reality, it may be different.
iWhen you call up the route info to this type
of destination, (
page 215) the following data
shown there may differ from the actual situation:
Distance to the destination
Estimated driving time to the destination
Estimated arrival time
211 Control systems
COMAND navigation system (route guidance)
During route guidance, the display is divid-
ed. On the right-hand side you will see the
direction arrow showing the compass
heading to the destination.
On the left-hand side of the display you will
see the map with the suggested route. The
suggested route is highlighted blue. How-
ever, it may not be possible to follow the
suggested route because, for example, the
road is closed or not open for car traffic.
If, during route guidance, COMAND leads
you back into a fully digitalized area, route
guidance will simply continue in the usual
manner.Off-road and off-map
Route guidance to an off-road
destination
COMAND can guide you to destinations
within the area covered by the digital map,
even if a destination is not located at a
road known to the system.These destinations are shown as off-road
destinations, which you can enter using
the map, for example.
In these cases, COMAND guides you for as
long as possible with navigation announce-
ments and displays on roads known to the
system.
Shortly before you reach the last known
the point to leave the digitized road net-
work, you will hear the announcement “The
destination is nearby. Follow the arrow on
the display”.
You will then see an arrow that indicates
the direction to the off-road destination.
When the off-road destination is close to
the road, “Area of dest. reached” appears
in addition below the arrow.
The section of the route from the last
known point on the map to the off-road
destination is indicated with a dashed line
after a certain length. It simply shows the
direction to the off-road destination with-
out taking account of any type of obstacles
in the way.
Warning!G
The COMAND navigation system may direct
you to off-road routes that your vehicle may
not be capable of traversing through without
damaging your tires, wheels or vehicle. It is
the driver’s sole responsibility to determine
the suitability of the route. Off-road routes
may be of varying conditions and their ap-
propriateness for use may be affected by
various factors such as time of day, time of
year and immediate weather conditions that
cannot be judged or taken into consider-
ation by the COMAND system.
212 Control systems
COMAND navigation system (route guidance)
1Current vehicle position; the triangle in-
dicates the vehicle’s direction of travel
2Off-road section of the route
3Off-road destination
4Direction arrow, shows compass head-
ing to destination
On the off-road section of the route, direc-
tion arrows showing the compass heading
to the destination guide you. You will also
see the “Direction to destination” display.Route guidance from an off-road
location to a destination
If there is no road available on map at cur-
rent position of the car, vehicle is off road.
COMAND is also able to guide you to a des-
tination from such a location.
At the start of the route guidance, you will
see the “Off Road” message and a direc-
tion arrow. The direction arrow shows the
compass heading to the actual destina-
tion.
The route is highlighted blue from the near-
est road known to the system.
As soon as the vehicle is back on a road
known to the system, route guidance con-
tinues in the usual way.
Route guidance from an off-map
location to a destination
If the vehicle position is outside the area
covered by the digital map, then the vehi-
cle is in an off-map location.
COMAND is also able to guide you to a des-
tination from such a location.At the start of the route guidance, you will
see the “Off Map” message and a direction
arrow. The direction arrow shows the com-
pass heading to the actual destination.
The route is highlighted blue from the near-
est road known to the system.
As soon as the vehicle is back on a road
known to the system, route guidance con-
tinues in the usual way.
Off-road during route guidance
The road layout may differ from the data on
the digital map, due to road construction
measures, for example.
In such cases, the system cannot allocate
the vehicle’s position to the digital map
and the vehicle is therefore in an off-road
position.
The “Off Road” message and an arrow
showing the compass heading to the desti-
nation appear on the display.
As soon as the system can allocate the ve-
hicle position’s to the map again, route
guidance continues in the usual way.