Alpine NVD-W912 Quick Reference Manual page 19

TRAFFiC SETTiNGS / uNdERSTANdiNG TRAFFiC*
a special icon ( ) is
displayed on the map screen to
show you whether traffic events
are received. The icon shows
the status of the traffic receiver
when there are no traffic events
on your route, otherwise it
shows the type of the next
traffic event on your route.
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