Android ApplicationsAll the information you could ever want about Android Applications. Learn about apps and get help with them... all here! New apps can be found and announced in the Applications Announcements forum linked below.
Device(s): Unlocked Galaxy Nexus, Droid Bionic, OG Droid CM7.2
Carrier: Not Provided
Thanked 315 Times in 258 Posts
From a user's perspective, this is my biggest gripe with Google - lack of documentation. I don't use Google Maps too frequently, as I have a dedicated unit in my primary vehicle, but my observation has been that Google Navigation selects the route without regard for traffic, but uses traffic info to display an "adjusted" travel time. Several times I have seen it select a route that is congested, and when I ask for alternate routes, they ALL have significantly shorter travel times (even with traffic).
Also, I believe most dedicated units that support traffic will re-route you as traffic information is updated. At least my TomTom Go 740 and Garmin C550 do.
From my experience, and this is solely from me using it and assuming what it is doing, but it seems like it doesn't reroute based on traffic, but the little "light" to the left of the travel time is green, yellow, or red based on traffic conditions on the route. If it is yellow or red, I look at the alternate routes to see if any look better and will choose a different one if they are.
I've had mixed results with how up to date the traffic info is. From what I've read, traffic information is crowd sourced from other Android devices. There have been times it seems to be dead on, and other times it has lagged a bit like showing me a traffic jam once I'm in it. I wonder if it will get better and better as more Android devices are in use?