How does the traffic feature work

Does the unit just show heavy traffic on the map display-- or does it
reroute you around it?

On Thu, 09 Jun 2011 09:26:38 -0400, Duke Mantee wrote:

For mine, it turns the map monochrome to say "there's something worth
talking about traffic-wise" and puts up big fat colored borders in
green, yellow, and red marking congested areas. If there's enough that
it's actually WORTH detouring, the unit will recalculate a route, but it
assess a fairly heavy time penalty to exit a freeway, drive to someplace
else, and get back on, so I can count the number of times that's
actually happened on one hand.

--
16. I will never utter the sentence "But before I kill you, there's
just one thing I want to know."
--Peter Anspach's list of things to do as an Evil Overlord

plus - there is no magic -

The GPS has an extra FM radio receiver - just like in your car radio -
to listen to the traffic reporting stations/signals
and use that info to determine what to show on the map.

So, if your local area doesn't have these special FM radio stations,
then you will not receive any traffic info and no map update display for
traffic...